[clang] [llvm] [TargetParser] Add a list of Intel GPUs, and use it in offload-arch (PR #222072)

[Nikita Kornev via cfe-commits]

KornevNikita wrote:

@bader do you have merge rights in this repo? If so, could you please take a final look (there were new changes since your approval) and merge if there are no concerns?

https://github.com/llvm/llvm-project/pull/222072