[CORD-1735] Add "relayAgentIps" option to DHCP relay application config

Change-Id: I2d95b5a285c81c15002ad94686b26ce03910198e
diff --git a/apps/dhcprelay/src/test/resources/dhcp-relay.json b/apps/dhcprelay/src/test/resources/dhcp-relay.json
index bd90b7a..dc724ee 100644
--- a/apps/dhcprelay/src/test/resources/dhcp-relay.json
+++ b/apps/dhcprelay/src/test/resources/dhcp-relay.json
@@ -5,13 +5,15 @@
         {
           "dhcpServerConnectPoint": "of:0000000000000002/2",
           "serverIps": ["172.168.10.2", "2000::200:1"],
-          "gatewayIps": ["192.168.10.254", "1000::100:1"]
+          "gatewayIps": ["192.168.10.254", "1000::100:1"],
+          "relayAgentIps": ["10.0.0.1", "1000:100::100:1"]
         }
       ],
       "indirect": [
         {
           "dhcpServerConnectPoint": "of:0000000000000002/3",
-          "serverIps": ["172.168.10.3"]
+          "serverIps": ["172.168.10.3"],
+          "relayAgentIps": ["10.0.1.1"]
         }
       ]
     }