svtplay: fix accessservice crash
svtplay: fix accessservice crash

they changed how they tell if the video syntolkat
fixes: #566

qnorsten/svtplay-dl,olof/svtplay-dl,olof/svtplay-dl,spaam/svtplay-dl,spaam/svtplay-dl,selepo/svtplay-dl,dalgr/svtplay-dl,qnorsten/svtplay-dl,dalgr/svtplay-dl,selepo/svtplay-dl