MFH: r425782

multimedia/ffmpeg0: fix h264 decoder crash on 11.0+ i386

-mstackrealign isn't required yet unlike multimedia/ffmpeg.

PR: 205958
Obtained from: https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d2af93ac1608
Approved by: portmgr blanket
Approved by: ports-secteam blanket