[Clang][NFC] - Move attr-cpuspecific-cpus test over to Sema#146065

AaronBallman merged 2 commits intollvm:mainllvm/llvm-project:mainfrom

pawan-nirpal-031:move-cpuspecific-attrstosemapawan-nirpal-031/llvm-project:move-cpuspecific-attrstosemaCopy head branch name to clipboard