uart_esc: do an additional advertise
uart_esc: do an additional advertise

If this is not done, the aDSP crashes, not quite sure why but it's gotta
be something about the context of the callback.

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