VOL-1406: Deploy voltha 2.0 in a k8s cluster

- Also added sleep to watching rw-core to ensure that the
  watching core does not respond to a request before the
  core that seized it.

Change-Id: I9998975b6dda42b3bd58112115c5122bf2b49d42
diff --git a/k8s/ro-core.yml b/k8s/ro-core.yml
index 3eb94db..2e7d78e 100644
--- a/k8s/ro-core.yml
+++ b/k8s/ro-core.yml
@@ -32,7 +32,7 @@
   name: ro-core
   namespace: voltha
 spec:
-  replicas: 1 
+  replicas: 3
   selector:
     matchLabels:
       app: ro-core