[VOL-1037, VOL-1035] This commit consists of flow and groups
handling (from NBI to Adapters, including decomposition),

Change-Id: I4f6d9ecd3dee8a9b161708b20b0a68d030c0cb23
diff --git a/protos/openflow_13.proto b/protos/openflow_13.proto
index 47d881b..e242e76 100644
--- a/protos/openflow_13.proto
+++ b/protos/openflow_13.proto
@@ -2278,6 +2278,7 @@
 message FlowGroupChanges {
     FlowGroups to_add = 1;
     FlowGroups to_remove = 2;
+    FlowGroups to_update = 3;
 }
 
 message PacketIn {