Find deployment name in config download
Find deployment name in config download

In some cases we get a ResourceGroup as parent resource of a deployment,
so the name will be a number. Ansible will be unhappy with that, so
let's get the grand parent to get the proper name.

Change-Id: Icc64b32a2179cd10853a54a83bf82a1761297ebd

openstack/tripleo-common,openstack/tripleo-common