coreutils-selinux to 8.22-1 update

Hello,

I've upgraded coreutils-selinux to 8.22. This update was not trivial as it broke "cp -a" in a fakeroot environment (thus breaking makepkg...). I've reported this bug to upstream and it is now fixed: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16335 and http://git.savannah.gnu.org/cgit/coreutils.git/commit/?id=d718331e59afb35e56445f3a1597ed74a7f3a3e2.

In the mean time, there has been another SELinux bug which got fixed upstream (http://git.savannah.gnu.org/cgit/coreutils.git/commit/?id=243128dbf0293be7b170dd47c8dbf3ed1834c093).

Hence this pull request contains the upgraded PKGBUILD with 2 patches from upstream.

Best,

Nicolas