qtcreator.pri: Fix version check to recognize Qt 5.

Change-Id: Ia98345a1ee5be3cc804679772bbcbaf3431468eb
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

qtcreator.pri

@@ -50,6 +50,9 @@ defineTest(minQtVersion) {
             return(true)
         }
     }
+    greaterThan(QT_MAJOR_VERSION, $$maj) {
+        return(true)
+    }
     return(false)
 }