Updated git submodules

Project: netvirt master a4a654424608839608ed326061886d6a6587f90e

Bug 8552 - [l3vpn]Stale flow entries not getting removed even when all the
VM config are deleted

FIB handling was being interrupted by and NPE, which led to stale remote
table-21 flows. This is because the GroupEntityBuilder has been modified
with respect to the way it adds BucketListInfo.
It tries to addALL the elements from the input List of buckets now, and
hence a null param causes NPE. This has been fixed.

Change-Id: Iafe20e405101c294ce56babbaf5ff0057be55ae7
Signed-off-by: eupakir <kiran.n.upadhyaya@ericsson.com>

diff --git a/docs/submodules/netvirt b/docs/submodules/netvirt
index 13611ba65c69a2d19d997d4daba0a9cbcecb278a..a4a654424608839608ed326061886d6a6587f90e 160000 (submodule)
--- a/docs/submodules/netvirt
+++ b/docs/submodules/netvirt
@@ -1 +1 @@
-Subproject commit 13611ba65c69a2d19d997d4daba0a9cbcecb278a
+Subproject commit a4a654424608839608ed326061886d6a6587f90e