[llvm] [libc][bazel] Add missing hdr/*_macros deps to test targets (PR #209761)

[Jordan Rupprecht via llvm-commits]

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

CI is failing, but I think there are _multiple_ libc commits that are causing problems. This should at least make the problem smaller.

I also merged 80314ec06f15e7a0bb4b55380e50b2e529c5b0f7 which makes a few of the same changes as here.

https://github.com/llvm/llvm-project/pull/209761