New comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/pull/36229#issuecomment-1079914938

Comment:
After adding this patch, I was able to build `llvm13` for `x86_64-musl`.
https://github.com/llvm/llvm-project/commit/d6906be01281e9b39b12ecbbb0f1d755d52e21f7.patch
from https://github.com/llvm/llvm-project/pull/351