ffmpeg: fix for CVE-2022-3341

avformat/nutdec: Add check for avformat_new_stream
Check for failure of avformat_new_stream() and propagate
the error code.

Upstream-Status: Backport [https://git.yoctoproject.org/poky/commit/?h=kirkstone&id=bba70ce34115151362bfdc49a545ee708eb297ca

]

(From OE-Core rev: e17ddd0f)

Signed-off-by: Narpat Mali <narpat.mali@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit bba70ce34115151362bfdc49a545ee708eb297ca)
Signed-off-by: Bhabu Bindu <bhabu.bindu@kpit.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>