Move rbd_default_features to ensure_resources
Move rbd_default_features to ensure_resources

We are working to land I477640c5db2cc84622da7734fb54cfe7740bd137
which creates a duplicate declration, we should be able to move from create
to ensure resource to minimize this until it lands.

Related_bug: 1633552

Change-Id: I95cafec9160f5c3b1610a0408f2f80d567fcaa89

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration