Reduced MS/TP MAX_APDU to use 480 by default in examples (#683)

* Reduced MS/TP MAX_APDU to 480 from 1476 so that devices not use new MS/TP extended frame types which older routers do not understand.

* Added extra objects to STM32F4xx example to elicit edge cases in object-list for testing.

src/bacnet/basic/object/av.c

@@ -257,8 +257,8 @@ bool Analog_Value_Object_Name(
                 characterstring_init_ansi(object_name, pObject->Object_Name);
         } else {
             snprintf(
-                text_string, sizeof(text_string), "ANALOG VALUE %u",
-                object_instance);
+                text_string, sizeof(text_string), "ANALOG VALUE %lu",
+                (unsigned long)object_instance);
             status = characterstring_init_ansi(object_name, text_string);
         }
     }