[clang] [llvm] AMDGPU: Add missing mqsad-insts to gfx13 frontend feature map (PR #213292)

[Dmitry Sidorov via cfe-commits]

https://github.com/MrSidims commented:

One note tho. https://clang.llvm.org/docs/AMDGPUBuiltinReference.html#builtin-amdgcn-mqsad-u32-u8 specifies only
`Target Features: mqsad-pk-insts`
for the builtin. This probably should be updated.

https://github.com/llvm/llvm-project/pull/213292