Merge commit '80035db8'

* commit '80035db8':
  lavu: add missing formats to av_pix_fmt_swap_endianness

Conflicts:
	libavutil/pixdesc.c

No change as our av_pix_fmt_swap_endianness() does not need formats to be listed individually
Merged-by: Michael Niedermayer <michaelni@gmx.at>