gn build: Add hwasan_preinit.cpp to hwasan static library to match CMake.#134942

pcc merged 5 commits intomainllvm/llvm-project:mainfrom

users/pcc/spr/gn-build-add-hwasan_preinitcpp-to-hwasan-static-library-to-match-cmakellvm/llvm-project:users/pcc/spr/gn-build-add-hwasan_preinitcpp-to-hwasan-static-library-to-match-cmakeCopy head branch name to clipboard