[llvm] AMDGPU: Handle gfx950XDL Write VGPR wait state change (PR #126132)

[Vigneshwar Jayakumar via llvm-commits]

VigneshwarJ wrote:

Split this PR into three, this one handles VALU WAW hazards

[AMDGPU: Handle gfx950 XDL-write-VGPR-VALU-Mem-Exp](https://github.com/llvm/llvm-project/pull/126727)
[AMDGPU: Handle gfx950 XDL-write-VGPR-Overlap-Src-AB](https://github.com/llvm/llvm-project/pull/126732)

https://github.com/llvm/llvm-project/pull/126132