[llvm] [PowerPC] Handle CALL_RM like CALL for 32-bit ELF (PR #72758)

[Chen Zheng via llvm-commits]

chenzheng1030 wrote:

> It would be nice to get this in.

Please let us know if need us to commit this pr. @kernigh 

https://github.com/llvm/llvm-project/pull/72758