New review comment by Logarithmus on void-packages repository

https://github.com/void-linux/void-packages/pull/31706#discussion_r662375055

Comment:
@ericonr because it fails to compile on `armv6`. Saying something about `atomic_add8` (or something similar). So apparently it wants 64bit atomics. See https://github.com/microsoft/mimalloc/pull/429