[clang] [llvm] [PowerPC] frontend get target feature from backend with cpu name (PR #137670)

[zhijian lin via llvm-commits]

diggerlin wrote:

@MaskRay, Just checking in to see if you have any further comments on the patch. If not, I’d like to go ahead and proceed with landing it. Thanks!

https://github.com/llvm/llvm-project/pull/137670