Moving flex master job to use onos-2.2

Change-Id: I571dba0c8206db9f6293862f7a7aaf6c212687e6
diff --git a/kubernetes-configs/voltha/flex-ocp-cord.yml b/kubernetes-configs/voltha/flex-ocp-cord.yml
index 3a898a7..d02bcd8 100644
--- a/kubernetes-configs/voltha/flex-ocp-cord.yml
+++ b/kubernetes-configs/voltha/flex-ocp-cord.yml
@@ -16,6 +16,11 @@
   image_tag: master
   image_pullPolicy: Always
 
+images:
+  onos:
+    repository: matteoscandolo/voltha-onos
+    tag: onos-2.2 
+
 deployments:
   etcdOperator: true
   backupOperator: false