Update rc.sensors : mRo X2.1 to enable the LIS3MDL
Update rc.sensors : mRo X2.1 to enable the LIS3MDL

This change allows the LIS3MDL based GPS magnetometers to autostart on the mRo x2.1.
krbeverx/Firmware,acfloria/Firmware,krbeverx/Firmware,PX4/Firmware,acfloria/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,PX4/Firmware,mcgill-robotics/Firmware,dagar/Firmware,dagar/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,PX4/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,dagar/Firmware,Aerotenna/Firmware,krbeverx/Firmware,krbeverx/Firmware,mcgill-robotics/Firmware,mcgill-robotics/Firmware,mcgill-robotics/Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,krbeverx/Firmware,PX4/Firmware,dagar/Firmware,acfloria/Firmware,krbeverx/Firmware,acfloria/Firmware,acfloria/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,dagar/Firmware,PX4/Firmware,Aerotenna/Firmware,PX4/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,dagar/Firmware