[FFmpeg-cvslog] h264: use proper PROLOGUE statement for a function using 8 registers.

[Ivan Kalvachev]

On 4/17/12, Ronald S. Bultje <git at videolan.org> wrote:
> ffmpeg | branch: master | Ronald S. Bultje <rsbultje at gmail.com> | Sun Apr 15
> 08:11:55 2012 -0700| [87a246341b0a87122391f9dbf00cae7bc3a62d90] | committer:
> Ronald S. Bultje
>
> h264: use proper PROLOGUE statement for a function using 8 registers.
>
> Fixes crashes when using biweight on win64.

FYI, it also fixes a crash on linux x86_32 with sse4 cpu.
Crash seems to have been introduced by "h264: fix 10bit biweight
functions after recent x86inc.asm fixes."