chore: HBase demo - add listener class fields (#230)

* add listener class fields

* revert change to pullPolicy

Author: adwk67

stacks/hdfs-hbase/hbase.yaml

@@ -7,18 +7,23 @@ spec:
   image:
     productVersion: 2.6.2
   clusterConfig:
-    listenerClass: external-unstable
     hdfsConfigMapName: hdfs
     zookeeperConfigMapName: hbase-znode
   masters:
+    config:
+      listenerClass: external-stable
     roleGroups:
       default:
         replicas: 1
   regionServers:
+    config:
+      listenerClass: external-unstable
     roleGroups:
       default:
         replicas: 2
   restServers:
+    config:
+      listenerClass: external-unstable
     roleGroups:
       default:
         replicas: 1