recipe: Hack to unhide backports

Invalidate the lib64 specific backports package to unhide the /usr/lib/
based backports package, which contains the ssl_match_hostname module.

Change-Id: I1e30f5481a8ce587128733ac88e519e769c1af4c
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1168582
Signed-off-by: Fabian Deutsch <fabiand@fedoraproject.org>