New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/33318#issuecomment-950923845

Comment:
Please document what was done in the commit: `split sof-tools as a separate package, since the package was previously using pre-built binaries for x86_64. It can't be built for archs other than x86_64 glibc yet, but that's not a problem, since the package was only usable there.`