In order to have nodepool build images and upload them to control
plane clouds, add them to the clouds.yaml on the nodepool-builder
hosts. Keep them out of the launcher configs by splitting the config
templates. So that we can keep our copies of things to a minimum,
create a group called "control-plane-clouds" and put bridge and nb0*
in it.
There are clouds mentions in here that we no longer use, a followup
patch will clean those up.
NOTE: Requires shifting the clouds config dict from
host_vars/bridge.openstack.org.yaml to group_vars/control-plane-clouds.yaml
in the secrets on bridge.
Needed-By: https://review.opendev.org/640044
Change-Id: Id1161bca8f23129202599dba299c288a6aa29212