ekf2_main: use correct method from updated ecl to get position accuracy

Signed-off-by: Roman <bapstroman@gmail.com>

src/modules/ekf2/ekf2_main.cpp

@@ -950,7 +950,7 @@ void Ekf2::task_main()
 						&status.hgt_test_ratio, &status.tas_test_ratio,
 						&status.hagl_test_ratio);
 		bool dead_reckoning;
-		_ekf.get_ekf_accuracy(&status.pos_horiz_accuracy, &status.pos_vert_accuracy, &dead_reckoning);
+		_ekf.get_ekf_gpos_accuracy(&status.pos_horiz_accuracy, &status.pos_vert_accuracy, &dead_reckoning);
 		_ekf.get_ekf_soln_status(&status.solution_status_flags);
 		_ekf.get_imu_vibe_metrics(status.vibe);