AP_HAL_FLYMAPLE: use functor macros

Functor is not yet being used but let's make is macro fallback to the
previous Delegate implementation for easy of transition between the two.

libraries/AP_HAL_FLYMAPLE/AnalogIn.cpp

@@ -38,7 +38,7 @@ FLYMAPLEAnalogIn::FLYMAPLEAnalogIn() :
 
 void FLYMAPLEAnalogIn::init(void* machtnichts) {
     /* Register FLYMAPLEAnalogIn::_timer_event with the scheduler. */
-    hal.scheduler->register_timer_process(AP_HAL_MEMBERPROC(&FLYMAPLEAnalogIn::_timer_event));
+    hal.scheduler->register_timer_process(FUNCTOR_BIND_MEMBER(&FLYMAPLEAnalogIn::_timer_event, void));
     /* Register each private channel with FLYMAPLEAnalogIn. */
     _register_channel(&_vcc);
 }