Updated git submodules

Updated git submodules

Project: netvirt master 4cdf164b1a349053458fb6815bda114f5576c535

Bug 7939:  VpnService Suite and Tempest failures

This fix is an add-on patch for the below review

https://git.opendaylight.org/gerrit/#/c/53355/

and is in a direction to solve the OperTxn gets
failing when configTxn changes are triggered.

Also we fix here the routerInterface VrfEntry
management such that when we clearly know its a
router-interface VRFEntry, we donot do any further
processing than what is required for the same.

Change-Id: I8efc5c41f26e9e6dd04c8638b2cfaa94a2050384
Signed-off-by: Vivekanandan Narasimhan <n.vivekanandan@ericsson.com>