Fix Play 2 benchmark_config files to say Full instead of ORM name

frameworks/Java/play2-java/benchmark_config

@@ -44,7 +44,7 @@
         "setup_file": "setup_java_jpa", 
         "framework": "play2", 
         "language": "Java", 
-        "orm": "JPA", 
+        "orm": "Full", 
         "os": "Linux", 
         "database": "MySQL", 
         "approach": "Realistic", 
@@ -60,4 +60,4 @@
       }
     }
   ]
-}
+}