Update AFAudioRouter.m
Update AFAudioRouter.m

clear error
PodsMakleso6/AFSoundManager,bugcloud/AFSoundManager,roman-yu/AFSoundManager,leasual/AFSoundManager,hejunbinlan/AFSoundManager,eni9889/AFSoundManager,shabbirh/AFSoundManager,AlvaroFranco/AFSoundManager