fix voted_sensors_update: use int32 for param_get()
fix voted_sensors_update: use int32 for param_get()

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