[libcxx-commits] [libcxx] [libcxx] Set `_LIBCPP_HAS_CLOCK_GETTIME` for GPU targets (PR #99243)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne requested changes to this pull request.

Looks like I reviewed those changes as part of #99259.

https://github.com/llvm/llvm-project/pull/99243