[lld] [lld][ELF] Support LLVM repository and LLVM revision information (PR #97323)

[Brad Smith via llvm-commits]

brad0 wrote:

> I think that we should check autotools before changing the "(compatible with GNU linkers)" as it may have the parenthesis hardcoded.

The string itself does not matter. It is just checking for the name GNU.

```
      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
      *GNU* | *'with BFD'*)
```

https://github.com/llvm/llvm-project/pull/97323