[clang] [llvm] [MC,llvm-readobj,yaml2obj] Support CREL relocation format (PR #91280)

[James Henderson via llvm-commits]

https://github.com/jh7370 commented:

I've spent as much time as I can on this today. I've reviewed the code in its entirety, but still haven't tackled the tests, I'm afraid.

https://github.com/llvm/llvm-project/pull/91280