Updated openstack/openstack
Project: openstack-dev/devstack  83f7736dcf9039d9114dd4568687f28221bac5d9
null
Fix hook script for Ironic

cleanup_ironic should not be started on "unstack" phase,
otherwise API service not restarted because auth cache
directory removed.

Change-Id: I3da86b9fb8c3ce1185aff05df0fa83cf259708f4