New comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/33870#issuecomment-960249246

Comment:
> Yeah, smth to do with atomic lib. I think it'd be better to use previous [3.120.3 ](https://github.com/haasn/libplacebo/releases/tag/v3.120.3) release since armv6 succeeds with that one.

let's fix it instead:
```sh
if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
	makedepends+=" libatomic-devel"
	LDFLAGS+=" -latomic"
fi
```

Please do not open new PRs like #33880, instead force push to this PR.