AMBARI-9136. Need to provide meaningful names for the stage context in Kerb API call response (rlevas)

ambari-server/src/main/java/org/apache/ambari/server/controller/KerberosHelper.java

@@ -513,7 +513,7 @@ public class KerberosHelper {
         Stage stage = createServerActionStage(++lastStageId,
             cluster,
             requestStageContainer.getId(),
-            "Process Kerberos Operations",
+            "Finalize Operations",
             clusterHostInfoJson,
             "{}",
             hostParamsJson,
@@ -1129,7 +1129,7 @@ public class KerberosHelper {
       stage = createServerActionStage(++stageId,
           cluster,
           requestStageContainer.getId(),
-          "Process Kerberos Operations",
+          "Create Principals",
           clusterHostInfoJson,
           "{}",
           hostParamsJson,
@@ -1148,7 +1148,7 @@ public class KerberosHelper {
       stage = createServerActionStage(++stageId,
           cluster,
           requestStageContainer.getId(),
-          "Process Kerberos Operations",
+          "Create Keytabs",
           clusterHostInfoJson,
           "{}",
           hostParamsJson,
@@ -1166,7 +1166,7 @@ public class KerberosHelper {
       stage = createNewStage(++stageId,
           cluster,
           requestStageContainer.getId(),
-          "Process Kerberos Operations",
+          "Distribute Keytabs",
           clusterHostInfoJson,
           StageUtils.getGson().toJson(commandParameters),
           hostParamsJson);
@@ -1194,7 +1194,7 @@ public class KerberosHelper {
       stage = createServerActionStage(++stageId,
           cluster,
           requestStageContainer.getId(),
-          "Process Kerberos Operations",
+          "Update Service Configurations",
           clusterHostInfoJson,
           "{}",
           hostParamsJson,