cache_read: don't fail when seeking at the end of the stream
cache_read: don't fail when seeking at the end of the stream

AStreamRefillStream shouldn't fail in case of EOF.
AStreamSeekStream shouldn't fail when no data can be cached after a seek.

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc