* Ignore vrf delete notification if vrf state is NULL There may be a duplicate delete notified for VRF in case quick addition and deletion, if vrf state is not set then ignore delete notification. Closes-bug:#1557427,#1557422
* Ignore vrf delete notification if vrf state is NULL
There may be a duplicate delete notified for VRF in case
quick addition and deletion, if vrf state is not set then
ignore delete notification.
Closes-bug:#1557427,#1557422

Change-Id: Ic449e56a536542d21a1bbf10bc2540210613953c

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