Wrap ceilometer-upgrade in boostrap_host_exec
Wrap ceilometer-upgrade in boostrap_host_exec

This ensures the update only occures on the primary node.

Change-Id: Id58eb9dac65dc178fa863c9bc44b1ed440e26a77

dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates