led_control move usage() to bottom of file
led_control move usage() to bottom of file

krbeverx/Firmware,dagar/Firmware,PX4/Firmware,krbeverx/Firmware,krbeverx/Firmware,PX4/Firmware,acfloria/Firmware,acfloria/Firmware,dagar/Firmware,acfloria/Firmware,PX4/Firmware,dagar/Firmware,acfloria/Firmware,krbeverx/Firmware,PX4/Firmware,PX4/Firmware,PX4/Firmware,dagar/Firmware,acfloria/Firmware,dagar/Firmware,krbeverx/Firmware,dagar/Firmware,krbeverx/Firmware,acfloria/Firmware,krbeverx/Firmware,dagar/Firmware,PX4/Firmware,acfloria/Firmware