Deploy contrail network manager only on controller

This is requried cause contrail network manager connects directly on localhost.
We cant use incluster auth cause kubernetes api is not reachable from underlay network

This change adds 2 things:
- additional label for all controllers: node-role.kubernetes.io: master
- nodeSelector for contrail network manager deployment

Change-Id: I77b46644ae8f4384890c25a2808a45c353554be8
2 files changed