New comment by ifreund on void-packages repository

https://github.com/void-linux/void-packages/pull/32584#issuecomment-902171746

Comment:
> #32572 was doing a split for a sub package, what do you think?

Oh, I totally missed that PR. Since waybar seems to be the only think that needs `libxkbregistry`, splitting into a subpackage makes sense to me, just a minute.