[AArch64] Refactor @plt, @gotpcrel, and @AUTH to use parseDataExpr#134202

MaskRay merged 4 commits intomainllvm/llvm-project:mainfrom

users/MaskRay/spr/aarch64-refactor-plt-gotpcrel-and-auth-to-use-parsedataexprllvm/llvm-project:users/MaskRay/spr/aarch64-refactor-plt-gotpcrel-and-auth-to-use-parsedataexprCopy head branch name to clipboard