Magnetic sensor direction should be ENU

[nyxrobotics]

Summery
Orientation should be e->n->u order for robot_localization.

fdilink_ahrs/src/ahrs_driver.cpp

Lines 309 to 312 in d61c953

	Eigen::Quaterniond q_ahrs(ahrs_frame_.frame.data.data_pack.Qw,
	ahrs_frame_.frame.data.data_pack.Qx,
	ahrs_frame_.frame.data.data_pack.Qy,
	ahrs_frame_.frame.data.data_pack.Qz);

fdilink_ahrs/src/ahrs_driver.cpp

Line 344 in d61c953

Eigen::Quaterniond q_out = q_z * q_rr * q_ahrs;