The kolla-kubernetes deliverable uses Newton images, however,
the kolla-ansible 4.0.0 deliverable is targeted at Ocata. In
Ocata, nova requires the placement API implementation. This
change is transitory until genconfig is no longer required
for kolla-kubernetes to operate.
Change-Id: I1c192a01d91b4f507bafadb53b6abb1efdcdb46c
Closes-Bug: #1663961