Adding MacAddress and VLAN to "Received DHCP Packet" logs

Change-Id: I8dea5900d043c8f843ffafe01abc3b37637e2272
diff --git a/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2Relay.java b/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2Relay.java
index 1fc408d..4514cdc 100755
--- a/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2Relay.java
+++ b/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2Relay.java
@@ -722,8 +722,8 @@
 
             SubscriberAndDeviceInformation entry = null;
 
-            log.info("Received DHCP Packet of type {} from {}",
-                     incomingPacketType, context.inPacket().receivedFrom());
+            log.info("Received DHCP Packet of type {} from {} with MacAddress {} and vlan {}",
+                     incomingPacketType, context.inPacket().receivedFrom(), packet.getSourceMAC(), packet.getVlanID());
 
             switch (incomingPacketType) {
                 case DHCPDISCOVER: