[lld] lld/AArch64: handle more relocation addends (PR #87328)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

Thanks a lot for the expertly-written test @MaskRay! I've now rebased, and the final patch is up along with all the corrections.

https://github.com/llvm/llvm-project/pull/87328