px4_fmu-v5: add here2 mag to startup
px4_fmu-v5: add here2 mag to startup

Signed-off-by: Silvan Fuhrer <38928ccc4ba1624d4c70454b92c2d93a502f06b9@auterion.com>
krbeverx/Firmware,acfloria/Firmware,acfloria/Firmware,PX4/Firmware,PX4/Firmware,krbeverx/Firmware,krbeverx/Firmware,PX4/Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,krbeverx/Firmware,krbeverx/Firmware,krbeverx/Firmware,krbeverx/Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware