posix drivers: Populate baro device ID

TODO - use unique HW ID

src/platforms/posix/drivers/df_bmp280_wrapper/df_bmp280_wrapper.cpp

@@ -155,9 +155,11 @@ int DfBmp280Wrapper::_publish(struct baro_sensor_data &data)
 
 	baro_report.pressure = data.pressure_pa;
 	baro_report.temperature = data.temperature_c;
-
 	// TODO: verify this, it's just copied from the MS5611 driver.
 
+	/* TODO get device ID for sensor */
+	baro_report.device_id = 0;
+
 	// Constant for now
 	const double MSL_PRESSURE_KPA = 101325.0 / 1000.0;