ffmpeg: upgrade 7.1.1 -> 7.1.2

Fixes CVE-2025-7700

Changelog:
https://github.com/FFmpeg/FFmpeg/blob/n7.1.2/Changelog

(From OE-Core rev: b564d34603753e93fdd52fc73c901a0d423c9681)

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

meta/recipes-multimedia/ffmpeg/ffmpeg_7.1.1.bb → meta/recipes-multimedia/ffmpeg/ffmpeg_7.1.2.bb

@@ -26,7 +26,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
            file://CVE-2025-22921.patch \
           "
 
-SRC_URI[sha256sum] = "733984395e0dbbe5c046abda2dc49a5544e7e0e1e2366bba849222ae9e3a03b1"
+SRC_URI[sha256sum] = "089bc60fb59d6aecc5d994ff530fd0dcb3ee39aa55867849a2bbc4e555f9c304"
 
 # https://nvd.nist.gov/vuln/detail/CVE-2023-39018
 # https://github.com/bramp/ffmpeg-cli-wrapper/issues/291