[CORD-2882] Set route source to DHCP for DHCPv4

In accompany with gerrit 17675

Change-Id: I727bde64ebcc31fe2d758d96a8ad28b279a75c26
diff --git a/apps/dhcprelay/src/test/java/org/onosproject/dhcprelay/DhcpRelayManagerTest.java b/apps/dhcprelay/src/test/java/org/onosproject/dhcprelay/DhcpRelayManagerTest.java
index 65518ee..25f7b67 100644
--- a/apps/dhcprelay/src/test/java/org/onosproject/dhcprelay/DhcpRelayManagerTest.java
+++ b/apps/dhcprelay/src/test/java/org/onosproject/dhcprelay/DhcpRelayManagerTest.java
@@ -449,7 +449,7 @@
         Route route = mockRouteStore.routes.get(0);
         assertEquals(OUTER_RELAY_IP, route.nextHop());
         assertEquals(IP_FOR_CLIENT.toIpPrefix(), route.prefix());
-        assertEquals(Route.Source.STATIC, route.source());
+        assertEquals(Route.Source.DHCP, route.source());
     }
 
     @Test