navio_adc: add override flag to init
navio_adc: add override flag to init

Signed-off-by: Nicolae Rosia <207aa917b021b404c269e8647897b2cc6117052a@gmail.com>

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