Updated openstack/openstack
Project: openstack/neutron  03cf93efd683ba71fcc27e1a284ca1854afabd93

ML2 Type driver refactor part 1

This commit moves segment management from the ML2 plugin to
the type manager in preparation for dynamic segment support.

Partially implements: Blueprint ml2-type-driver-refactor

Change-Id: I068b82369250d115ef91680f19e733ed9aa4659b