Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: Change a missed occurrance of int to ptrdiff_t for strides
  x86: Remove win64 xmm clobbering wrappers for the now removed avcodec_encode_video function
  bktr: Add missing includes for av_gettime()
  fate: use little endian yuv444p10 in h264-reinit tests

Nothing changes through this merge as the 3 bugfixes already exist
in ffmpeg and the clobbering wraper is still in use as we did not
yet remove avcodec_encode_video
Merged-by: Michael Niedermayer <michaelni@gmx.at>