Use correct authentication URL for metadata service
Use correct authentication URL for metadata service

The authentication URL for the metadata service did not include
the keystone version in it. This caused any calls to the service
to return with a 500 status code.

Closes-Bug: #1434313
Change-Id: I765e93bbb42751aea9ba56a1fc2f666be636227f

michaelgugino/openstack-ansible-os_neutron,michaelgugino/openstack-ansible-os_neutron