vdsm.spec: increase selinux-policy for rhel distro

Adding missing booleans:
- sanlock_use_nfs added in selinux-policy 3.7.19-131
- sanlock_use_fusefs added selinux-policy 3.7.19-155.5

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=889122
Change-Id: I712f6975f9705d91c7eef8fad047bbaa6dada2e9
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/10622
Reviewed-by: Dan Kenigsberg <danken@redhat.com>