[SPIR-V] Fix OpName and LinkageAttributes decoration of global variables#120492

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

VyacheslavLevytskyy:gv_name_decoVyacheslavLevytskyy/llvm-project:gv_name_decoCopy head branch name to clipboard