Do not attempt GR for BGP Peers if BgpServer has been disabled
Do not attempt GR for BGP Peers if BgpServer has been disabled

Change-Id: I6bdf269e4431f327d9641ede5de1d0fa71447e3a
Partial-Bug: #1537933

tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller