[clang][x86] Change SLLDQ/SRLDQ byte shift intrinsics to use vXi8 types instead of vXi64#158671

RKSimon merged 3 commits intollvm:mainllvm/llvm-project:mainfrom

RKSimon:x86-byteshift-vxi8-typesRKSimon/llvm-project:x86-byteshift-vxi8-typesCopy head branch name to clipboard