AMBARI-18462. Cannot enable Atlas HA in HDP 2.5 because server cardinality should be 1+ (alejandro)

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

@@ -27,7 +27,7 @@
           <name>ATLAS_SERVER</name>
           <displayName>Atlas Metadata Server</displayName>
           <category>MASTER</category>
-          <cardinality>1</cardinality>
+          <cardinality>1+</cardinality>
           <versionAdvertised>true</versionAdvertised>
           <dependencies>
             <dependency>