BUG-832 Add initial configuration for controller self mount

Netconf server for config subsystem is mounted to restconf under id "controller-config" by default

This illustrates the usage of sal-netconf-connector

Change-Id: I3f324b41995dc094bac0d316788dfdb05e18ef60
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>
Merge "BUG-832 Add initial configuration for controller self mount"