[llvm] [NFC][RISCV] Move Zvfbf* relative stuffs to RISCVInstrInfoZvfbf.td (PR #159619)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `mlir-nvidia-gcc7` running on `mlir-nvidia` while building `llvm` at step 6 "build-check-mlir-build-only".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/116/builds/18609

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

```
Step 6 (build-check-mlir-build-only) failure: build (failure)
...
2.960 [4158/16/805] Building IndexOps.cpp.inc...
2.960 [4157/16/806] Building IndexOps.h.inc...
2.967 [4156/16/807] Building IndexOpsTypes.cpp.inc...
2.968 [4155/16/808] Building GPUOps.cpp.inc...
3.091 [4154/16/809] Building ARMTargetParserDef.inc...
3.810 [4153/16/810] Building AArch64TargetParserDef.inc...
4.337 [4152/16/811] Building NVPTXGenRegisterInfo.inc...
4.571 [4151/16/812] Building NVPTXGenAsmWriter.inc...
4.590 [4150/16/813] Building NVPTXGenSubtargetInfo.inc...
4.605 [4149/16/814] Building RISCVTargetParserDef.inc...
FAILED: include/llvm/TargetParser/RISCVTargetParserDef.inc /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include/llvm/TargetParser/RISCVTargetParserDef.inc 
cd /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include/llvm/TargetParser && /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/bin/llvm-min-tblgen -gen-riscv-target-def -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/TargetParser -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV/RISCV.td --write-if-changed -o RISCVTargetParserDef.inc -d RISCVTargetParserDef.inc.d && /usr/bin/cmake -E cmake_transform_depfile Ninja gccdepfile /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/TargetParser /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include/llvm/TargetParser /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include/llvm/TargetParser/RISCVTargetParserDef.inc.d /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/CMakeFiles/d/bdc764314e2d09af900cd1a674f07ab6b5f6addef61da1dc83f682eb9a6c5db3.d
Included from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV/RISCV.td:36:
Included from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV/RISCVInstrInfo.td:2344:
Included from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV/RISCVInstrInfoV.td:1842:
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/Target/RISCV/RISCVInstrInfoZvfbf.td:39:19: error: Variable not defined: 'HasStdExtZvfbfmin'
let Predicates = [HasStdExtZvfbfmin] in {
                  ^
5.655 [4149/15/815] Building NVPTXGenDAGISel.inc...
5.865 [4149/14/816] Building NVPTXGenInstrInfo.inc...
5.920 [4149/13/817] Building X86GenExegesis.inc...
6.758 [4149/12/818] Building X86GenCallingConv.inc...
7.008 [4149/11/819] Building X86GenAsmWriter1.inc...
7.239 [4149/10/820] Building X86GenFoldTables.inc...
7.313 [4149/9/821] Building X86GenAsmWriter.inc...
7.355 [4149/8/822] Building X86GenDisassemblerTables.inc...
7.456 [4149/7/823] Building X86GenAsmMatcher.inc...
8.280 [4149/6/824] Building X86GenMnemonicTables.inc...
8.350 [4149/5/825] Building X86GenInstrMapping.inc...
9.985 [4149/4/826] Building X86GenFastISel.inc...
10.758 [4149/3/827] Building X86GenGlobalISel.inc...
11.894 [4149/2/828] Building X86GenDAGISel.inc...
14.474 [4149/1/829] Building X86GenInstrInfo.inc...
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/159619