Update gerrit branch refs to 3.0.0-ONAP

Change-Id: I75ea788f47598aa07ecb6550b5db7e9e4fdc1d36
Issue-ID: OOM-1533
Signed-off-by: Mike Elliott <mike.elliott@amdocs.com>
diff --git a/kubernetes/portal/docker/init/mariadb-client/Dockerfile b/kubernetes/portal/docker/init/mariadb-client/Dockerfile
index 5eb5ad1..72f60d3 100644
--- a/kubernetes/portal/docker/init/mariadb-client/Dockerfile
+++ b/kubernetes/portal/docker/init/mariadb-client/Dockerfile
@@ -14,7 +14,7 @@
 
 FROM boxfuse/flyway:5.0.7-alpine
 
-ARG branch=master
+ARG branch=3.0.0-ONAP
 ENV no_proxy "localhost,127.0.0.1,.cluster.local,$KUBERNETES_SERVICE_HOST"
 # Setup Corporate proxy
 ENV https_proxy ${HTTP_PROXY}