ekf: make range finder kin consistency gate tunable by parameter

src/modules/ekf2/EKF/common.h

@@ -307,6 +307,7 @@ struct parameters {
 	float range_aid_innov_gate{1.0f}; 	///< gate size used for innovation consistency checks for range aid fusion
 	float range_valid_quality_s{1.0f};	///< minimum duration during which the reported range finder signal quality needs to be non-zero in order to be declared valid (s)
 	float range_cos_max_tilt{0.7071f};	///< cosine of the maximum tilt angle from the vertical that permits use of range finder and flow data
+	float range_kin_consistency_gate{0.2f}; ///< gate size used by the range finder kinematic consistency check
 
 	// vision position fusion
 	float ev_vel_innov_gate{3.0f};		///< vision velocity fusion innovation consistency gate size (STD)