Using get_contrail_internal_vip to determine the discovery ip to handle cfgm/openstack roles in different set of nodes.
Using get_contrail_internal_vip to determine the discovery ip
to handle cfgm/openstack roles in different set of nodes.

Change-Id: I0cc8b78d01a1c9c2f2d7066f959421e17af91d95
Closes-Bug: 1630076

Juniper/contrail-fabric-utils,Juniper/contrail-fabric-utils