fix a renaming issue

aman/types/ArrivalRoute.py

@@ -8,4 +8,4 @@ class ArrivalRoute:
         self.Route = waypoints
 
     def __str__(self):
-        return 'Name: ' + self.Name + ', IAF: ' + self.Iaf.name + ', RWY: ' + self.Runway
+        return 'Name: ' + self.Name + ', IAF: ' + self.Iaf.Name + ', RWY: ' + self.Runway