[clang] [compiler-rt] [llvm] [X86] Hygon Processors Initial enablement (PR #187622)

[Xiaomeng Zhang via cfe-commits]

zhangxiaomeng-hygon wrote:

Hi @RKSimon, I see the PR has been approved and the CI errors don't seem to be caused by this PR. Do I need to modify anything else? If not, is it ready to be merged?

https://github.com/llvm/llvm-project/pull/187622