[lld] [ELF] Support R_RISCV_SET_ULEB128/R_RISCV_SUB_ULEB128 in SHF_ALLOC sections (PR #77261)

[Kito Cheng via llvm-commits]

https://github.com/kito-cheng approved this pull request.

Thanks, LGTM :)

https://github.com/llvm/llvm-project/pull/77261