[lld] [lld] Properly diagnose R_AARCH64_PREL32 overflow (PR #205963)

[Peter Smith via llvm-commits]

smithp35 wrote:

I've merged the ABI PR to https://github.com/ARM-software/abi-aa/pull/401 to make R_AARCH64_PREL32 and R_AARCH64_PREL16 signed.

Could you update the PR description to mention the ABI change. That will make it easier to see in the history why the orginal implementation did it in a different way, with a commit message that matched the original ABI.

https://github.com/llvm/llvm-project/pull/205963