[clang] Reapply "[Driver][OHOS] Fix lld link issue for OHOS (#118192)" (PR #120159)

[Nico Weber via cfe-commits]

nico wrote:

IIRC there are two possible compiler-rt directory layouts. @MaskRay worked on moving many platforms from one to another. I think the newer layout doesn't use platform suffixes.

We shouldn't change where clang looks for things just for my bot. Thanks for figuring it out; I can delete the file from that bot. (What about developers that are in the same position though -- maybe it'd make sense to have a cmake action that deletes the file in the old location for a bit? Wouldn't help my bot since it doesn't use cmake, but might help others.)

We should figure out which path we want independently of my bot :) I don't know the current naming rules. Maybe @MaskRay remembers if we have documentation on this. Else, just relanding the patch as it was is fine.

https://github.com/llvm/llvm-project/pull/120159