when having a controller node with several modules that use puppet-openstacklib
the package python-openstackclient is already declared. because openstacklib
adds the tag 'openstack' to the resource, we have to do it here to. otherwise
ensure_resource does not recognize it and we have a duplicate declaration
for the package.
Change-Id: Icf341ea92764f2ddb60b0e7ace09a56febe59545
Closes-Bug: #1483663