Update os_vif to new release 1.5.0
Update os_vif to new release 1.5.0

Change-Id: I6ada67d83db39a598569daa61c20fd463a828ed3
Depends-on: I1a602b989ed205424c55cedefc2b41eb0d50ba7e

openstack/rpm-packaging,openstack/rpm-packaging