Fix creation of VIPS for multiple fixed IP's when port security is disabled.
Fix creation of VIPS for multiple fixed IP's when port security is disabled.

Change-Id: I72bec5ada5b496dcf10c15a71656a33d664aecd3
Closes-Bug: OPENSTACK-2148
Depends-On: I7fad5dc0026db0b2650eee2ffd011a09c1ecf792

nuagenetworks/nuage-openstack-neutron,nuagenetworks/nuage-openstack-neutron