Deployed server: switch to apply-config hook
Deployed server: switch to apply-config hook

This patch switches the deployed-server.yaml template to use
apply-config instead of os-apply-config. The 'apply-config' hook
is now installed via a package (no longer requires elements for
installation) and supports more signalling options.

This is required to support the undercloud installer which doesn't work
with os-collect-config heat metadata.

Change-Id: I7963fe4f38e8f04c9871fe651d39efec1aa17c41

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