[lld] Reapply "[lld] Support thumb PLTs" (#93631) (PR #93644)

[Fangrui Song via llvm-commits]

MaskRay wrote:

> This reverts commit [7832769](https://github.com/llvm/llvm-project/commit/7832769d329ead264aff238c06dce086b3a74922).
> 
> This was reverted prior due to a test failure on the windows builder. I think this was because we didn't specify the triple and assumed windows. The other tests use the full triple specifying linux, so we follow suite here.

Suggest that the relanded patch contains the full description. You can add brief words what has changed from the first attempt.

https://github.com/llvm/llvm-project/pull/93644