Add container_image_prepare_params to deployment workflow
Add container_image_prepare_params to deployment workflow

This change has been broken out from the previous one because
Ifb1f81d4f7db3efd2799beca8705957e29ba16bd had to be reverted due to a
dependency on needing a promoted container image which contains the
action python.

Change-Id: Ie1bd6448684d5885a58c0ba30800b22ec9c105fd
Blueprint: container-prepare-workflow

openstack/tripleo-common,openstack/tripleo-common