Merge commit '848e86f7'

* commit '848e86f7':
  mpegvideo: Drop flags and flags2

Conflicts:
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/ratecontrol.c
	libavcodec/vc1_block.c
	libavcodec/vc1_loopfilter.c
	libavcodec/vc1_mc.c
	libavcodec/vc1dec.c

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