Configure: call "make distclean" for libatomic.
Configure: call "make distclean" for libatomic.

Signed-off-by: Piotr Sikora <2c0eb4a25a7cde333ff2d0860cb06051925fd74f@cloudflare.com>

hy0kl/nginx,firebase/nginx,hy0kl/nginx,firebase/nginx,firebase/nginx,firebase/nginx,hy0kl/nginx