[compiler-rt] [compiler-rt] Fix test ifdefs and XFAILs (PR #160687)

[Akira Hatanaka via llvm-commits]

https://github.com/ahatanak approved this pull request.

Ah, I didn't realize I'd unconditionally disabled the tests. Thanks for catching the error.

https://github.com/llvm/llvm-project/pull/160687