Updated openstack/openstack
Project: openstack/neutron  f16d1dc8c5cda8fed8328938a265a448b9e1a777

Validate network config (vlan)

Validate to make sure empty physical networks
are not permitted. Added unit test as well.

Change-Id: Ie55fab3c53276ed48d5e9d603e8c1dc59fa9cc32
Closes-Bug: 1325664