tripleo-podman: Enable podman.socket
tripleo-podman: Enable podman.socket

Instead of relying on nsenter in the various wrappers, we should use
podman --remote. To do this, we need to enable podman.socket.

Depends-On: https://review.opendev.org/c/openstack/tripleo-ansible/+/800847
Related-Bug: #1936005
Change-Id: I4d6c6e5dbaaa6e9ff7fdb6f0c719ad3ae3645f15

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