ekf2: use estimator_aid_src for all yaw sources (mag, gnss, ev)

src/modules/ekf2/EKF/estimator_interface.h

@@ -328,9 +328,7 @@ protected:
 	float _gps_yaw_offset{0.0f};	// Yaw offset angle for dual GPS antennas used for yaw estimation (radians).
 
 	// innovation consistency check monitoring ratios
-	float _yaw_test_ratio{};		// yaw innovation consistency check ratio
-	AlphaFilter<float> _yaw_signed_test_ratio_lpf{0.1f}; // average signed test ratio used to detect a bias in the state
-	Vector3f _mag_test_ratio{};		// magnetometer XYZ innovation consistency check ratios
+	AlphaFilter<float> _gnss_yaw_signed_test_ratio_lpf{0.1f}; // average signed test ratio used to detect a bias in the state
 	Vector2f _ev_vel_test_ratio{};		// EV velocity innovation consistency check ratios
 	Vector2f _ev_pos_test_ratio{};		// EV position innovation consistency check ratios
 	Vector2f _aux_vel_test_ratio{};		// Auxiliary horizontal velocity innovation consistency check ratio