CORD-800 Use new interface vlan config for VLAN assignment

In addition
  - Change the name and type of INTERNAL_VLAN

Change-Id: I48bb89cc1cb1fe4155b4d889b1e7384c8bf673fa
diff --git a/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/ArpHandler.java b/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
index 30c6ada..8f0b7d3 100644
--- a/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
+++ b/apps/segmentrouting/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
@@ -135,8 +135,7 @@
             // ARP reply for unknown host, Flood in the subnet.
             } else {
                 // Don't flood to non-edge ports
-                if (pkt.vlan().equals(
-                        VlanId.vlanId(SegmentRoutingManager.ASSIGNED_VLAN_NO_SUBNET))) {
+                if (pkt.vlan().equals(SegmentRoutingManager.INTERNAL_VLAN)) {
                     return;
                 }
                 flood(pkt);