hevc: remove disable_au option(cherry picked from commit e90b3f6753d645fec076e951a0597a5dc2d2fe31)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
hevc: cleaning disable field in deblocking filter(cherry picked from commit 7dd7a27ae850a51b3c9cd07046c422677398f6d5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
hevc: pretty print(cherry picked from commit 6332b3afe298b9e1060e8549aea3aa2771b43f5d)

Conflicts:

	libavcodec/hevc.h
	libavcodec/hevc_filter.c
	libavcodec/hevc_refs.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
hevc: fix transform_skip which is only valid for 4x4(cherry picked from commit 740e5a71e5121dbf3fabdc4fec97829c18ecc2d8)

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