Try to return working IP if we get more than one
Try to return working IP if we get more than one

Rather than just returning the first one - if we have multiple choice,
take a quick stab at picking one if one works and one does not.

Change-Id: Ie517af9c10a2a1384f670dca5526f2b919458279

openstack/python-openstacksdk,stackforge/python-openstacksdk,openstack-infra/shade,dtroyer/python-openstacksdk,openstack/python-openstacksdk,dtroyer/python-openstacksdk,openstack-infra/shade,stackforge/python-openstacksdk