spec: Enable lvm selinux fix for Fedora

In case we cannot get the real fix in systemd quickly, this patch
enables the temporary hack on Fedora.

Change-Id: I29e54ee1e52d323d15452c2c1975b63d6c9fa7e8
Bug-Url: https://bugzilla.redhat.com/1127460
Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/33555
Reviewed-by: Federico Simoncelli <fsimonce@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>