[llvm] ARM: Move gnu half convert calling conv config into tablegen (PR #153394)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-mlir-rhel-clang` running on `ppc64le-mlir-rhel-test` while building `llvm` at step 5 "build-check-mlir-build-only".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/129/builds/27146

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build-check-mlir-build-only) failure: build (failure)
...
1.522 [4096/5/294] Linking CXX executable bin/not
1.523 [4096/4/295] Linking CXX executable bin/count
1.547 [4096/3/296] Linking CXX executable bin/split-file
1.556 [4096/2/297] Linking CXX executable bin/FileCheck
1.560 [4096/1/298] Linking CXX executable bin/llvm-min-tblgen
1.608 [4067/29/299] Building Attributes.inc...
1.611 [4067/28/300] Building GenVT.inc...
1.657 [4040/54/301] Building CXX object lib/CodeGenTypes/CMakeFiles/LLVMCodeGenTypes.dir/LowLevelType.cpp.o
1.659 [4039/54/302] Building OMP.h.inc...
1.659 [4039/53/303] Building RuntimeLibcalls.inc...
FAILED: include/llvm/IR/RuntimeLibcalls.inc /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/include/llvm/IR/RuntimeLibcalls.inc 
cd /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/include/llvm/IR && /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/bin/llvm-min-tblgen -gen-runtime-libcalls -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include/llvm/IR -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include/llvm/IR/RuntimeLibcalls.td --write-if-changed -o RuntimeLibcalls.inc -d RuntimeLibcalls.inc.d && /home/buildbots/llvm-external-buildbots/cmake-3.31.2/bin/cmake -E cmake_transform_depfile Ninja gccdepfile /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include/llvm/IR /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/include/llvm/IR /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/include/llvm/IR/RuntimeLibcalls.inc.d /home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/build/CMakeFiles/d/d1ea248e3b63694b5fb41f6e85d14c8670adb947412aec1c38ae8ecc313e4597.d
/home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include/llvm/IR/RuntimeLibcalls.td:1505:5: error: def already exists: GNUEABIHalfConvertCalls
def GNUEABIHalfConvertCalls :
    ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-mlir-rhel-test/ppc64le-mlir-rhel-clang-build/llvm-project/llvm/include/llvm/IR/RuntimeLibcalls.td:1485:5: note: location of previous definition
def GNUEABIHalfConvertCalls :
    ^
1.663 [4039/52/304] Building OMP.inc...
1.678 [4039/51/305] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/DialectGen.cpp.o
1.679 [4039/50/306] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/FormatGen.cpp.o
1.680 [4039/49/307] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/AttrOrTypeDefGen.cpp.o
1.681 [4039/48/308] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/BytecodeDialectGen.cpp.o
1.682 [4039/47/309] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/DirectiveCommonGen.cpp.o
1.683 [4039/46/310] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/mlir-tblgen.cpp.o
1.684 [4039/45/311] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/AttrOrTypeFormatGen.cpp.o
1.686 [4039/44/312] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/LLVMIRConversionGen.cpp.o
1.687 [4039/43/313] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpDocGen.cpp.o
1.689 [4039/42/314] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpGenHelpers.cpp.o
1.690 [4039/41/315] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/CppGenUtilities.cpp.o
1.691 [4039/40/316] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/EnumPythonBindingGen.cpp.o
1.692 [4039/39/317] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/LLVMIRIntrinsicGen.cpp.o
1.693 [4039/38/318] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpDefinitionsGen.cpp.o
1.694 [4039/37/319] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpFormatGen.cpp.o
1.696 [4039/36/320] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OmpOpGen.cpp.o
1.697 [4039/35/321] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/EnumsGen.cpp.o
1.697 [4039/34/322] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpClass.cpp.o
1.698 [4039/33/323] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/TosaUtilsGen.cpp.o
1.702 [4039/32/324] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpInterfacesGen.cpp.o
1.703 [4039/31/325] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/PassCAPIGen.cpp.o
1.704 [4039/30/326] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/RewriterGen.cpp.o
1.709 [4039/29/327] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/OpPythonBindingGen.cpp.o
1.710 [4039/28/328] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/PassDocGen.cpp.o
1.711 [4039/27/329] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/PassGen.cpp.o
1.713 [4039/26/330] Building CXX object tools/mlir/tools/mlir-tblgen/CMakeFiles/mlir-tblgen.dir/SPIRVUtilsGen.cpp.o
1.744 [4039/25/331] Linking CXX static library lib/libLLVMCodeGenTypes.a
2.581 [4039/24/332] Building IntrinsicsLoongArch.h...
2.626 [4039/23/333] Building IntrinsicsSPIRV.h...
2.642 [4039/22/334] Building IntrinsicsAMDGPU.h...

```

</details>

https://github.com/llvm/llvm-project/pull/153394