AMBARI-26462: Alluxio-site-properties.xml does not pass validation (#3985)

Author: jojochuang

ambari-server/src/main/resources/stacks/BIGTOP/3.2.0/services/ALLUXIO/configuration/alluxio-site-properties.xml

@@ -149,5 +149,6 @@ alluxio.worker.rpc.port={{alluxio_worker_rpc_port}}
 alluxio.worker.web.port={{alluxio_worker_web_port}}
 
         </value>
+        <on-ambari-upgrade add="true"/>
     </property>
 </configuration>