Change nfvo into nfvo_vim for os config generation group name
Change nfvo into nfvo_vim for os config generation group name

Change-Id: Icff44b5267e5807aa5bacb912332945f66ef3a13
Closes-bug: 1634000

zeinsteinz/tacker,stackforge/tacker,openstack/tacker,openstack/tacker,zeinsteinz/tacker,stackforge/tacker,openstack/tacker