Updated git submodules

Project: netvirt master e75e7ba9d5a928527a15880ebc708435623cbe8a

BUG 7717 Fix OOM when defining large number of networks

Use NodeId instead of Node as key for the cache
ProviderNetworkManagerImpl::nodeToProviderMapping
The size bridge Node object is huge when there are
large number of network/subnets on the bridge.

Change-Id: I6956318477dfa524ce20680d12bba3c7818540ec
Signed-off-by: Vinh Nguyen <vinh.nguyen@hcl.com>

diff --git a/docs/submodules/netvirt b/docs/submodules/netvirt
index 832cd02284025076d23c90a53c6f770d1046a18a..e75e7ba9d5a928527a15880ebc708435623cbe8a 160000 (submodule)
--- a/docs/submodules/netvirt
+++ b/docs/submodules/netvirt
@@ -1 +1 @@
-Subproject commit 832cd02284025076d23c90a53c6f770d1046a18a
+Subproject commit e75e7ba9d5a928527a15880ebc708435623cbe8a