Fix configuration in tests
Fix configuration in tests

Add neutron vpnaas configuration in integration tests.

Change-Id: I8b6a0ed73a14b29e7e1c3d1417aa0d57d4b36f7d

steveb/heat,cwolferh/heat-scratch,maestro-hybrid-cloud/heat,jasondunsmore/heat,miguelgrinberg/heat,pratikmallya/heat,gonzolino/heat,srznew/heat,pratikmallya/heat,steveb/heat,takeshineshiro/heat,srznew/heat,miguelgrinberg/heat,noironetworks/heat,dragorosson/heat,dragorosson/heat,cryptickp/heat,gonzolino/heat,cwolferh/heat-scratch,openstack/heat,cryptickp/heat,noironetworks/heat,dims/heat,maestro-hybrid-cloud/heat,openstack/heat,dims/heat,jasondunsmore/heat,takeshineshiro/heat