Until bug #1635409 is fixed we'll have to keep the default list
of services deployed by hyperconverged-ceph.yaml in sync with the
ServicesDefault list provided in roles_data.yaml
This change adds some logic in the templates validation script to
ensure that is preserved with future updates.
Change-Id: Ib767f9a24c3541b16f96bd6b6455cf797113fbd8