Updated openstack/openstack
Project: openstack/nova  cdd73734446aaaa54fdaa816e6512fa374635956

VMware: rename vmware_images to images

There is no need for the prefix vmware. vmware_images.py has been
renamed to images.py and test_vmware_images.py has been renamed
to test_images.py.

Change-Id: Icbc64da072f60713c1a79aca2ed503dcd7586063