[husky_bringup] Enabled using MagnenticField message for UM6 and UM7 since...

[husky_bringup] Enabled using MagnenticField message for UM6 and UM7 since imu_filter_madgwick now uses it by default.

husky_bringup/launch/um6_config/um6.launch

@@ -4,6 +4,7 @@
   <node pkg="um6" type="um6_driver" name="um6_driver">
     <param name="port" type="string" value="$(optenv HUSKY_IMU_PORT /dev/clearpath/imu)"/>
     <param name="mag_updates" type="bool" value="false"/>
+    <param name="use_magnetic_field_msg" type="bool" value="true"/>
     <param name="frame_id" value="imu_link"/>
     <param name="tf_ned_to_enu" value="false"/>
     <remap from="imu" to="imu_um6"/>

husky_bringup/launch/um7_config/um7.launch

@@ -4,6 +4,7 @@
   <node pkg="um7" type="um7_driver" name="um7_driver">
     <param name="port" type="string" value="$(optenv HUSKY_IMU_PORT /dev/clearpath/um7)"/>
     <param name="mag_updates" type="bool" value="false"/>
+    <param name="use_magnetic_field_msg" type="bool" value="true"/>
     <param name="frame_id" value="imu_link"/>
     <param name="tf_ned_to_enu" value="false"/>
     <remap from="imu" to="imu_um7"/>