IO driver: Reflect availability of override state in safety topic
IO driver: Reflect availability of override state in safety topic

This allows other components to correctly configure for potential manual override states if the pilot chooses to enable them.

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