Fix ceilometer idempotent
Fix ceilometer idempotent

bootstrap_service in ceilometer should only be ran once during multi
deployment to keep idempotent

Partial-Bug: #1633463
Change-Id: Ic5d256e2e887661b4679c4518e8c3865b85189bf

nihilifer/kolla,openstack/kolla,stackforge/kolla,dardelean/kolla-ansible,GalenMa/kolla,dardelean/kolla-ansible,stackforge/kolla,intel-onp/kolla,openstack/kolla,rahulunair/kolla,mrangana/kolla,mrangana/kolla,coolsvap/kolla,GalenMa/kolla,intel-onp/kolla,nihilifer/kolla,coolsvap/kolla,stackforge/kolla,dardelean/kolla-ansible,coolsvap/kolla,rahulunair/kolla