tiff: fix CVE-2025-8851

tiff: fix CVE-2025-8851

A vulnerability was determined in LibTIFF up to 4.5.1. Affected
by this issue is the function readSeparateStripsetoBuffer of the
file tools/tiffcrop.c of the component tiffcrop. The manipulation
leads to stack-based buffer overflow. Local access is required to
approach this attack. The patch is identified as
8a7a48d7a645992ca83062b3a1873c951661e2b3. It is recommended to
apply a patch to fix this issue.

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2025-8851

Upstream patch:
https://gitlab.com/libtiff/libtiff/-/commit/8a7a48d7a645992ca83062b3a1873c951661e2b3

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>