Use 'private' network for tripleo-test-cloud-rh1
Use 'private' network for tripleo-test-cloud-rh1

Change-Id: Ie9cc0b1945b1ca5059ee0827c01987ab8b38fab7
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack-infra/project-config,openstack-infra/project-config