Updated openstack/openstack
Project: openstack/tempest  ab6106ddaa5b58a423277fcdfc57ad85c31f39ce

Skip IPv6 scenarios for baremetal

These tests attempt to create two isolated tenant networks and
boot servers on each.  Baremetal relies on flat networking that
does not support network isolation, so these tests should be skipped
in that case.

Change-Id: Ia7383114c17e4d901c81b8e7b6b2822a7ec4f908