Fix xml response for create/update security service
Fix xml response for create/update security service

Changed xml template for create/update security service
from SecurityServiceTemplates to SecurityServiceTemplate

Closes bug 1269829

Change-Id: I07f2847b8897cfbc2ee3e1952709925c3c056774

jcsp/manila,sajuptpm/manila,NetApp/manila,scality/manila,vponomaryov/manila,NetApp/manila,weiting-chen/manila,bswartz/manila,vponomaryov/manila,sajuptpm/manila,openstack/manila,redhat-openstack/manila,weiting-chen/manila,scality/manila,redhat-openstack/manila,openstack/manila,bswartz/manila,jcsp/manila