VOL-612 - rename images to work better with public repository

Change-Id: I9679544987c3a08d0001928cfbc39d710a6c1eae
diff --git a/compose/docker-compose-voltha-swarm.yml b/compose/docker-compose-voltha-swarm.yml
index cbbe319..cd6489a 100644
--- a/compose/docker-compose-voltha-swarm.yml
+++ b/compose/docker-compose-voltha-swarm.yml
@@ -1,7 +1,7 @@
 version: "3"
 services:
   vcore:
-    image: "${REGISTRY}voltha/voltha:${TAG:-latest}"
+    image: "${REGISTRY}${REPOSITORY}voltha-voltha:${TAG:-latest}"
     logging:
       driver: "json-file"
       options: