ffmpeg: fix CVE-2025-0518

ffmpeg: fix CVE-2025-0518

Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows
Read Sensitive Constants Within an Executable. This vulnerability is associated
with program files https://github.Com/FFmpeg/FFmpeg/blob/master/libavfilter/af_pan.C
This issue affects FFmpeg: 7.1.
Issue was fixed:  https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a
https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a
This issue was discovered by: Simcha Kosma

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