Fix Neutron config setting in pre_test_hook
Fix Neutron config setting in pre_test_hook

Change-Id: I843416f091c6804f3a14581a1992ee2f119cbd4c
Closes-Bug: #1486501

jcsp/manila,openstack/manila,jcsp/manila,bswartz/manila,bswartz/manila,NetApp/manila,vponomaryov/manila,NetApp/manila,vponomaryov/manila,openstack/manila,scality/manila,redhat-openstack/manila,redhat-openstack/manila,scality/manila