Prevent incorrect rescheduling for BMP280 baro dummy ut_delay (#612)

(cherry picked from commit 79fdc6d392)

src/main/fc/mw.c

@@ -726,8 +726,10 @@ void taskUpdateCompass(void)
 void taskUpdateBaro(void)
 {
     if (sensors(SENSOR_BARO)) {
-        uint32_t newDeadline = baroUpdate();
-        rescheduleTask(TASK_SELF, newDeadline);
+        const uint32_t newDeadline = baroUpdate();
+        if (newDeadline != 0) {
+            rescheduleTask(TASK_SELF, newDeadline);
+        }
     }
 
     //updatePositionEstimator_BaroTopic(currentTime);