Updated git submodules

Project: netvirt stable/carbon 9160eb50ecb63fca38fd9eaa652670f31ab7c55f

Bug 8979: Logging enhancements for VPNService

This fixes logging issues related to non-parametrization of logs, printing
of exceptions, changing log levels for a few logs.
These changes have been made across NeutronVPN primarily, and also a bit
for VPNManager and FIBManager

Change-Id: Ice4b206ada6cc591f96ef75eccd820683b21a647
Signed-off-by: Abhinav Gupta <abhinav.gupta@ericsson.com>

diff --git a/docs/submodules/netvirt b/docs/submodules/netvirt
index 25d4c8839177f46464a723b9f3f411f552e2747d..9160eb50ecb63fca38fd9eaa652670f31ab7c55f 160000 (submodule)
--- a/docs/submodules/netvirt
+++ b/docs/submodules/netvirt
@@ -1 +1 @@
-Subproject commit 25d4c8839177f46464a723b9f3f411f552e2747d
+Subproject commit 9160eb50ecb63fca38fd9eaa652670f31ab7c55f