ffmpeg: fix CVE-2024-35369

ffmpeg: fix CVE-2024-35369

In FFmpeg version n6.1.1, specifically within the avcodec/speexdec.c module,
a potential security vulnerability exists due to insufficient validation of
certain parameters when parsing Speex codec extradata. This vulnerability
could lead to integer overflow conditions, potentially resulting in undefined
behavior or crashes during the decoding process.

Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>