Updated openstack/openstack
Project: openstack/neutron  5721066f77bdf4f1bed62edf73e1ba9d46b6d5b0

Add definition for new VIF type

The type VIF_TYPE_DVS is added. This indicates that the port
will be added to a VMware distributed virtual switch.

This is for blueprint vsphere-neutron.

Change-Id: I1b5df837734af9a3f7d48b60de120592b11e392e