Merge commit '0ac1fec1c3dacedabbf3dd4122ef4bf8523e688c'

* commit '0ac1fec1c3dacedabbf3dd4122ef4bf8523e688c':
  bitstream: Move VLC reading functions into the vlc.h header
  vlc: Add header #include when the types are used

This commit is a noop, see
https://ffmpeg.org/pipermail/ffmpeg-devel/2017-April/209609.html

Merged-by: James Almer <jamrial@gmail.com>