Add ContainerImagePrepare service to ControllerStorageNfs role
Add ContainerImagePrepare service to ControllerStorageNfs role

While using ControllerStorageNfs role images are not pushed to local registry,
since ContainerImagePrepare service is missing in ControllerStorageNfs role.

Closes-Bug: #1814057

Change-Id: Iafe7bf37d7d04eed32a32b8881fab48fdc9f9dd6

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