CORD-48 First checkin for enabling OF-DPA driver to support the SR app.
Filtering Objective support added. Driver renamed from OFDPA1 to OFDPA2.
Code refactored within driver to reflect test-code which will be used by
static flow-pusher app in the future.

Change-Id: I7132d8b8eaf28df7c11646c5a35035f258c65af4
diff --git a/src/main/java/org/onosproject/segmentrouting/ArpHandler.java b/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
index f42f84b..55192a9 100644
--- a/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/ArpHandler.java
@@ -112,7 +112,7 @@
 
 
     private boolean isArpReqForRouter(DeviceId deviceId, ARP arpRequest) {
-        List<Ip4Address> gatewayIpAddresses = config.getSubnetGatewayIps(deviceId);
+        List<Ip4Address> gatewayIpAddresses = config.getPortIPs(deviceId);
         if (gatewayIpAddresses != null) {
             Ip4Address targetProtocolAddress = Ip4Address.valueOf(arpRequest
                     .getTargetProtocolAddress());