Upstream has just removed lbaasv1 from openstack-lbaas
(https://review.openstack.org/286381). A full fix will involve
removing all lbaasv1 support from puppet-neutron, but while it is
done we should only use lbaasv2 in puppet-openstack-integration
to avoid CI issues.
Change-Id: If63110644d441bb8b088c93aebc02356b158aebd