mediacodec: change the way to send codec specific data
mediacodec: change the way to send codec specific data

The CSD is now split into several ones, therefore there is one CSD per H264
Parameter Sets (SPS and PPS).

There is now only one way to send a CSD. It's sent via PutInput with the
BUFFER_FLAG_CODEC_CONFIG flag.

krichter722/vlc,vlc-mirror/vlc,vlc-mirror/vlc,krichter722/vlc,krichter722/vlc,shyamalschandra/vlc,shyamalschandra/vlc,xkfz007/vlc,xkfz007/vlc,krichter722/vlc,shyamalschandra/vlc,xkfz007/vlc,shyamalschandra/vlc,xkfz007/vlc,krichter722/vlc,vlc-mirror/vlc,xkfz007/vlc,shyamalschandra/vlc,vlc-mirror/vlc,vlc-mirror/vlc,vlc-mirror/vlc,krichter722/vlc,xkfz007/vlc,krichter722/vlc,shyamalschandra/vlc,vlc-mirror/vlc,xkfz007/vlc,shyamalschandra/vlc