[llvm] [RISCV] Add initial assembler/MC layer support for big-endian (PR #146534)

[Djordje Todorovic via llvm-commits]

djtodoro wrote:

> Description:
> 
> > * Handle BE targets in AddressSanitizer
> 
> While this might be on the roadmap, I don't see it in the patch.

Ah, we decided to leave it for the other upcoming changes, and I removed it from the PR as well as from commit message. Just removed it from PR description as well.

https://github.com/llvm/llvm-project/pull/146534