Skip tests when SELinux is disabled
Skip tests when SELinux is disabled

SELinux tests no longer fail when SeLinux is disabled.
Instead they are skipped.

vojtechtrefny/blivet,rvykydal/blivet,jkonecny12/blivet,vojtechtrefny/blivet,jkonecny12/blivet,rvykydal/blivet