[clang] [Clang] Fix __cpuidex conflict with other offloading targets (PR #157741)

[Nick Sarnie via cfe-commits]

sarnex wrote:

Thanks Aiden, yeah I think the root issue here is just how we handle builtins for offloading targets, what we are doing seems very unexpected to me, if I make it do what I expect I see <20 lit fails, so it's possible we could rework it to make sense, but yeah requires further investigation.

https://github.com/llvm/llvm-project/pull/157741