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/so/charts/so-mariadb/values.yaml b/kubernetes/so/charts/so-mariadb/values.yaml
index fa16a7b..b1544aa 100755
--- a/kubernetes/so/charts/so-mariadb/values.yaml
+++ b/kubernetes/so/charts/so-mariadb/values.yaml
@@ -40,7 +40,7 @@
 config:
   mariadbRootPassword: password
   # gerrit branch where the latest heat code is checked in
-  gerritBranch: master
+  gerritBranch: 3.0.0-ONAP
   # gerrit project where the latest heat code is checked in
   gerritProject: http://gerrit.onap.org/r/so/docker-config.git
 # default number of instances