update for ONOS 1.10.3 support

Change-Id: I441d387d3e5d20058bdf2ef9050d7fe42cc43234
diff --git a/Makefile b/Makefile
index d595565..3435fb0 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,10 @@
 build:
 	docker build -f Dockerfile.make -t $(IMAGE_NAME):$(DEPLOY_DOCKER_TAG) $(ROOT_DIR)
 
+.PHONY: onos
+onos:
+	docker build -t cord/onos:latest -f docker/Dockerfile.onos .
+
 .PHONY: publish
 publish:
 	docker tag $(IMAGE_NAME):$(DEPLOY_DOCKER_TAG) $(DOCKER_REGISTRY)/$(IMAGE_NAME):$(DEPLOY_DOCKER_TAG)