New comment by Piraty on void-packages repository

https://github.com/void-linux/void-packages/issues/24106#issuecomment-743505903

Comment:
as pointed out by @pbui on IRC, there's a note in the [project's readme](https://github.com/EntropicEffect/rtl8822bu/blob/66aae0e630e9886acee2386c0623ca479130c8b8/README.md) about non-x86 archs.
that makefile should be patched to pick the correct karch