AMBARI-18710 - Ubuntu16 Add Support for Spark on HDP 2.5 (Duc Le via jonathanhurley)

ambari-server/src/main/resources/stacks/HDP/2.5/services/SPARK/metainfo.xml

@@ -98,7 +98,7 @@
           </packages>
         </osSpecific>
         <osSpecific>
-          <osFamily>debian7,ubuntu12,ubuntu14</osFamily>
+          <osFamily>debian7,ubuntu12,ubuntu14,ubuntu16</osFamily>
           <packages>
             <package>
               <name>spark-${stack_version}</name>