Support VLAN network in gateway node.

Change-Id: Ia18287bf072e47787ba71865e8f8c4cb032dc455
(cherry picked from commit 4063f40a0eb0639bb96e5e0ebf5f39954ab7ccae)
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
index 85b520c..3f5620e 100644
--- a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
@@ -88,4 +88,6 @@
     public static final int CLI_LABELS_LENGTH = 30;
     public static final int CLI_CONTAINERS_LENGTH = 30;
     public static final int CLI_MARGIN_LENGTH = 2;
+
+    public static final int PRIORITY_STATEFUL_SNAT_RULE = 40500;
 }