[llvm] AMDGPU: Fix entry for mac in VGPR->AGPR MFMA table (PR #119693)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clangd-ubuntu-tsan` running on `clangd-ubuntu-clang` while building `llvm` at step 5 "build-clangd-clangd-index-server-clangd-indexer".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/134/builds/10263

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

```
Step 5 (build-clangd-clangd-index-server-clangd-indexer) failure: build (failure)
0.010 [4633/18/1] Creating /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/NATIVE...
0.011 [4632/18/2] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o
FAILED: lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Demangle -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Demangle -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o -MF lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o.d -o lib/Demangle/CMakeFiles/LLVMDemangle.dir/RustDemangle.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Demangle/RustDemangle.cpp
ccache: error: /vol/ccache/ccache.conf: No such file or directory
0.075 [4632/17/3] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/AutoConvert.cpp.o
0.830 [4632/16/4] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/DLangDemangle.cpp.o
1.046 [4632/15/5] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Allocator.cpp.o
1.224 [4632/14/6] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RISCVAttributes.cpp.o
1.270 [4632/13/7] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RewriteBuffer.cpp.o
1.283 [4632/12/8] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ARMWinEH.cpp.o
1.385 [4632/11/9] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RewriteRope.cpp.o
1.404 [4632/10/10] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APSInt.cpp.o
1.445 [4632/9/11] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/MicrosoftDemangleNodes.cpp.o
1.540 [4632/8/12] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamError.cpp.o
1.552 [4632/7/13] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Base64.cpp.o
1.625 [4632/6/14] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RISCVAttributeParser.cpp.o
2.331 [4632/5/15] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/MicrosoftDemangle.cpp.o
3.887 [4632/4/16] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BalancedPartitioning.cpp.o
3.957 [4632/3/17] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/APInt.cpp.o
5.190 [4632/2/18] Building CXX object lib/Demangle/CMakeFiles/LLVMDemangle.dir/ItaniumDemangle.cpp.o
16.959 [4632/1/19] Configuring NATIVE LLVM...
-- The C compiler identification is Clang 18.1.0
-- The CXX compiler identification is Clang 18.1.0
-- The ASM compiler identification is Clang with GNU-like command-line
-- Found assembler: /usr/bin/clang
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- bolt project is disabled
-- clang project is enabled
-- clang-tools-extra project is enabled
-- compiler-rt project is disabled
-- cross-project-tests project is disabled
-- libc project is disabled
-- libclc project is disabled
-- lld project is disabled
-- lldb project is disabled
-- mlir project is disabled
-- openmp project is disabled
-- polly project is disabled
-- pstl project is disabled
-- flang project is disabled

```

</details>

https://github.com/llvm/llvm-project/pull/119693