Copter: set gyros disabled when calibrating

ArduCopter/GCS_Mavlink.pde

@@ -245,6 +245,12 @@ static NOINLINE void send_extended_status1(mavlink_channel_t chan)
     }
 #endif
 
+    if (!ap.initialised) {
+        // while initialising the gyros and accels are not enabled
+        control_sensors_enabled &= ~(MAV_SYS_STATUS_SENSOR_3D_GYRO | MAV_SYS_STATUS_SENSOR_3D_ACCEL);
+        control_sensors_health &= ~(MAV_SYS_STATUS_SENSOR_3D_GYRO | MAV_SYS_STATUS_SENSOR_3D_ACCEL);
+    }
+
     mavlink_msg_sys_status_send(
         chan,
         control_sensors_present,