Merge commit 'cb214707a6cb0d3272ec0261af6f1f5d8b7dabc7'

* commit 'cb214707a6cb0d3272ec0261af6f1f5d8b7dabc7':
  vp56data: Move all shared enum/struct declarations to common header

Merged-by: Michael Niedermayer <michaelni@gmx.at>

diff --cc libavcodec/vp56.h
Simple merge

diff --cc libavcodec/vp56data.h
Simple merge

diff --cc libavcodec/vp6data.h
Simple merge

diff --cc libavcodec/vp8.h
Simple merge