Updated openstack/openstack
Project: openstack/nova  6d2e6675a76022c41dc8a1240945ade492367a1b

Fix logic for aggregate_metadata_get_by_host_with_key test case

After deleting a3 metadata, it is the host that once has such metadata
should be tested.

Change-Id: I79c40aa977911cd327d478ad8d9f147e19325017