(uart) expose radio message indicator state

Train.cpp

@@ -895,7 +895,8 @@ TTrain::get_state() const {
 		mvOccupied->Doors.step_enabled,
 		mvOccupied->Power24vIsAvailable,
 		0,
-		mvOccupied->LockPipe
+		mvOccupied->LockPipe,
+		btLampkaRadioMessage.GetValue(),
     };
 }
 

Train.h

@@ -123,6 +123,7 @@ class TTrain {
 		std::uint8_t battery;
 		std::uint8_t emergencybrake;
 		std::uint8_t lockpipe;
+		bool radiomessageindicator;
     };
 
     struct screen_entry {

uart.cpp

@@ -557,7 +557,8 @@ void uart_input::poll()
 			  | trainstate.doorrightallowed << 3
 			  | trainstate.doorrightopened << 4
 			  | trainstate.doorstepallowed << 5
-			  | trainstate.battery << 6),
+			  | trainstate.battery << 6
+			  | trainstate.radiomessageindicator << 7),
             //byte 4
 			(uint8_t)(
                 trainstate.train_heating << 0