fix podspec
fix podspec

fly2012/LMMediaPlayer,ichu501/LMMediaPlayer,Niko-r/LMMediaPlayer,freeme/LMMediaPlayer,Roeun/LMMediaPlayer,0x0c/LMMediaPlayer,mobileteamvietnam/LMMediaPlayer,strakaviliam/LMMediaPlayer,Shumais/LMMediaPlayer,sdgandhi/LMMediaPlayer,Michael-Z/LMMediaPlayer,zsk425/LMMediaPlayer,flypigrmvb/LMMediaPlayer,dlpigpen/LMMediaPlayer