Fix/workaround for Gigabyte keyboard

The gigabyte keyboard has an N key rollover input, that is different than all of our current keyboards.

So this code tells (currently All) keyboards to choose their boot protocol, which gets us back to the standard boot definition.  Which alllows these keyboards to function like others.

keyboard.cpp

@@ -138,13 +138,24 @@ bool KeyboardController::claim(Device_t *dev, int type, const uint8_t *descripto
 	datapipe = new_Pipe(dev, 3, endpoint, 1, 8, interval);
 	datapipe->callback_function = callback;
 	queue_Data_Transfer(datapipe, report, 8, this);
-	mk_setup(setup, 0x21, 10, 0, 0, 0); // 10=SET_IDLE
+
+	mk_setup(setup, 0x21, 11, 0, 0, 0); // 11=SET_PROTOCOL  BOOT
 	queue_Control_Transfer(dev, &setup, NULL, this);
 	return true;
 }
 
 void KeyboardController::control(const Transfer_t *transfer)
 {
+	println("control callback (keyboard)");
+	print_hexbytes(transfer->buffer, transfer->length);
+	// To decode hex dump to human readable HID report summary:
+	//   http://eleccelerator.com/usbdescreqparser/
+	uint32_t mesg = transfer->setup.word1;
+	println("  mesg = ", mesg, HEX);
+	if (mesg == 0x001021 && transfer->length == 0) { // SET_PROTOCOL
+		mk_setup(setup, 0x21, 10, 0, 0, 0); // 10=SET_IDLE
+		queue_Control_Transfer(device, &setup, NULL, this);
+	}
 }
 
 void KeyboardController::callback(const Transfer_t *transfer)