Tone alarm sound for barometer check fail

src/drivers/drv_tone_alarm.h

@@ -150,6 +150,7 @@ enum {
 	TONE_ARMING_FAILURE_TUNE,
 	TONE_PARACHUTE_RELEASE_TUNE,
 	TONE_EKF_WARNING_TUNE,
+	TONE_BARO_WARNING_TUNE,
 	TONE_NUMBER_OF_TUNES
 };
 

src/drivers/stm32/tone_alarm/tone_alarm.cpp

@@ -337,6 +337,7 @@ ToneAlarm::ToneAlarm() :
 	_default_tunes[TONE_ARMING_FAILURE_TUNE] = "MFT255L4<<<BAP";
 	_default_tunes[TONE_PARACHUTE_RELEASE_TUNE] = "MFT255L16agagagag";			// parachute release
 	_default_tunes[TONE_EKF_WARNING_TUNE] = "MFT255L8ddd#d#eeff";				// ekf warning
+	_default_tunes[TONE_BARO_WARNING_TUNE] = "MFT255L4gf#fed#d";				// baro warning
 
 	_tune_names[TONE_STARTUP_TUNE] = "startup";			// startup tune
 	_tune_names[TONE_ERROR_TUNE] = "error";				// ERROR tone
@@ -350,6 +351,7 @@ ToneAlarm::ToneAlarm() :
 	_tune_names[TONE_ARMING_FAILURE_TUNE] = "arming_failure";            //fail to arm
 	_tune_names[TONE_PARACHUTE_RELEASE_TUNE] = "parachute_release";	// parachute release
 	_tune_names[TONE_EKF_WARNING_TUNE] = "ekf_warning";				// ekf warning
+	_tune_names[TONE_BARO_WARNING_TUNE] = "baro_warning";			// baro warning
 }
 
 ToneAlarm::~ToneAlarm()