[llvm] [TargetLoweringObjectFile] Handle riscv BE (PR #155166)

[Djordje Todorovic via llvm-commits]

djtodoro wrote:

> LGTM.
> 
> I don't think we should extend LLVM's in-tree tests with testing against gcc etc, I am happy to trust your confirmation that things were working together.

Thanks!

https://github.com/llvm/llvm-project/pull/155166