HDDS-1647 : Recon config tag does not show up on Ozone UI. (#914)

hadoop-hdds/common/src/main/resources/ozone-default.xml

@@ -1196,13 +1196,14 @@
 
   <property>
     <name>hadoop.tags.custom</name>
-    <value>OZONE,MANAGEMENT,SECURITY,PERFORMANCE,DEBUG,CLIENT,SERVER,OM,SCM,CRITICAL,RATIS,CONTAINER,REQUIRED,REST,STORAGE,PIPELINE,STANDALONE,S3GATEWAY</value>
+    <value>OZONE,MANAGEMENT,SECURITY,PERFORMANCE,DEBUG,CLIENT,SERVER,OM,SCM,
+      CRITICAL,RATIS,CONTAINER,REQUIRED,REST,STORAGE,PIPELINE,STANDALONE,S3GATEWAY,RECON</value>
   </property>
 
   <property>
     <name>ozone.tags.system</name>
     <value>OZONE,MANAGEMENT,SECURITY,PERFORMANCE,DEBUG,CLIENT,SERVER,OM,SCM,
-      CRITICAL,RATIS,CONTAINER,REQUIRED,REST,STORAGE,PIPELINE,STANDALONE,S3GATEWAY,TOKEN,TLS</value>
+      CRITICAL,RATIS,CONTAINER,REQUIRED,REST,STORAGE,PIPELINE,STANDALONE,S3GATEWAY,TOKEN,TLS,RECON</value>
   </property>