changing docker registry for onos docker build

Change-Id: I0954e339e6ba614661c4a6c4acee4b1fa65d7ac2
diff --git a/docker/Dockerfile.onos b/docker/Dockerfile.onos
index d7df6b8..2efa355 100644
--- a/docker/Dockerfile.onos
+++ b/docker/Dockerfile.onos
@@ -28,7 +28,7 @@
 ADD config/dependencies.xml .
 RUN mvn dependency:copy -Dmdep.useBaseVersion=true -DoutputDirectory=${DOWNLOAD_ROOT} -Dsilent=true -f dependencies.xml -s mvn_settings.xml
 
-FROM matteoscandolo/onos:1.13.9-rc4 as install
+FROM onosproject/onos:1.13.9-rc4 as install
 MAINTAINER Open Networking Foundation <info@opennetworking.org>
 
 # The ENV settings must be replicated below as they are not shared between stages