FlightTaskOrbit: fix vehicle yawing to the center
FlightTaskOrbit: fix vehicle yawing to the center

I accidentally swapped yaw setpoint and yawspeed setpoint when switching
to the new setpointinterface in 309237c4a2824e43875deb39ef731387a3eaeae8

mje-nz/PX4-Firmware,acfloria/Firmware,PX4/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,krbeverx/Firmware,krbeverx/Firmware,PX4/Firmware,Aerotenna/Firmware,PX4/Firmware,krbeverx/Firmware,dagar/Firmware,acfloria/Firmware,Aerotenna/Firmware,dagar/Firmware,acfloria/Firmware,dagar/Firmware,krbeverx/Firmware,Aerotenna/Firmware,krbeverx/Firmware,krbeverx/Firmware,acfloria/Firmware,PX4/Firmware,Aerotenna/Firmware,acfloria/Firmware,Aerotenna/Firmware,acfloria/Firmware,Aerotenna/Firmware,PX4/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,dagar/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,acfloria/Firmware,dagar/Firmware