Updated git submodules

Project: netvirt master 6a8be57b2269e31951636feedd1c1b42e6fb03cc

Bug 7866 adding retries for remote dmac programming during tunnel up event

* currently there is no retries in case of OptimisticLockFailedException
while programming remote dmac during tunnel up event. This leads to remote
dmac is programmed with drop action which leads to packet drop. Now added
retries for jc job.
* Also adding retries in case remote BC group fails (during tunnel up event) due to datastore exceptions.

Change-Id: I2bc024fc7133170c321c4a5071d6b58e00a2666b
Signed-off-by: Periyasamy Palanisamy <periyasamy.palanisamy@ericsson.com>

diff --git a/docs/submodules/netvirt b/docs/submodules/netvirt
index 383d2e133038c155295dedd87346245536e0018e..6a8be57b2269e31951636feedd1c1b42e6fb03cc 160000 (submodule)
--- a/docs/submodules/netvirt
+++ b/docs/submodules/netvirt
@@ -1 +1 @@
-Subproject commit 383d2e133038c155295dedd87346245536e0018e
+Subproject commit 6a8be57b2269e31951636feedd1c1b42e6fb03cc