EKF: Use standard C++ initializers

EKF/ekf.cpp

@@ -310,11 +310,11 @@ bool Ekf::collect_imu(imuSample &imu)
 
 	// store the new sample for the complementary filter prediciton
 	_imu_sample_new = {
-		delta_ang		: imu.delta_ang,
+		.delta_ang	= imu.delta_ang,
-		delta_vel		: imu.delta_vel,
+		.delta_vel	= imu.delta_vel,
-		delta_ang_dt	: imu.delta_ang_dt,
+		.delta_ang_dt	= imu.delta_ang_dt,
-		delta_vel_dt	: imu.delta_vel_dt,
+		.delta_vel_dt	= imu.delta_vel_dt,
-		time_us			: imu.time_us
+		.time_us	= imu.time_us
 	};
 
 	_imu_down_sampled.delta_ang_dt += imu.delta_ang_dt;
@@ -333,11 +333,11 @@ bool Ekf::collect_imu(imuSample &imu)
 	if ((_dt_imu_avg * _imu_ticks >= (float)(FILTER_UPDATE_PERRIOD_MS) / 1000) || 
 		_dt_imu_avg * _imu_ticks >= 0.02f){
 		imu = {
-			delta_ang		: _q_down_sampled.to_axis_angle(),
+			.delta_ang	= _q_down_sampled.to_axis_angle(),
-			delta_vel		: _imu_down_sampled.delta_vel,
+			.delta_vel	= _imu_down_sampled.delta_vel,
-			delta_ang_dt	: _imu_down_sampled.delta_ang_dt,
+			.delta_ang_dt	= _imu_down_sampled.delta_ang_dt,
-			delta_vel_dt	: _imu_down_sampled.delta_vel_dt,
+			.delta_vel_dt	= _imu_down_sampled.delta_vel_dt,
-			time_us			: imu.time_us
+			.time_us	= imu.time_us
 		};
 		_imu_down_sampled.delta_ang.setZero();
 		_imu_down_sampled.delta_vel.setZero();