[clang] [Driver] Restore compiler-rt arch suffix for PS and Windows (PR #89775)

[Nico Weber via cfe-commits]

nico wrote:

Anyway, for this specific issue it sounds like the change here was unintentional. As suggested by mstorsjo at https://github.com/llvm/llvm-project/pull/87866#issuecomment-2073231116, I think it'd be good to revert these changes, and then make a mindful decision about this when relanding.

https://github.com/llvm/llvm-project/pull/89775