l3gd20: use the I2C disable bit on l3gd20H
l3gd20: use the I2C disable bit on l3gd20H

this seems to prevent a mpu6000 reset from causing an issue on the
l3gd20H

Aerotenna/Firmware,Aerotenna/Firmware,jlecoeur/Firmware,darknight-007/Firmware,krbeverx/Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware,darknight-007/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,acfloria/Firmware,dagar/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,darknight-007/Firmware,jlecoeur/Firmware,PX4/Firmware,krbeverx/Firmware,mcgill-robotics/Firmware,dagar/Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,Aerotenna/Firmware,darknight-007/Firmware,krbeverx/Firmware,Aerotenna/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,PX4/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,dagar/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,PX4/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,darknight-007/Firmware,PX4/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,jlecoeur/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,dagar/Firmware,dagar/Firmware,jlecoeur/Firmware,dagar/Firmware,acfloria/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware