[OE-core][whinlatter][PATCH v2 19/29] libpng: upgrade 1.6.50 -> 1.6.51

[ankur.tyagi85@gmail.com]

From: Zhang Peng <peng.zhang1.cn@windriver.com>

Changes from version 1.6.50 to version 1.6.51
- Fixed CVE-2025-64505 (moderate severity): Heap buffer overflow in `png_do_quantize`
  via malformed palette index. (Reported by Samsung; analyzed by Fabio Gritti.)
- Fixed CVE-2025-64506 (moderate severity): Heap buffer over-read in `png_write_image_8bit`
  with 8-bit input and `convert_to_8bit` enabled.
  (Reported by Samsung and weijinjinnihao@users.noreply.github.com; analyzed by Fabio Gritti.)
- Fixed CVE-2025-64720 (high severity): Buffer overflow in `png_image_read_composite` via
  incorrect palette premultiplication. (Reported by Samsung; analyzed by John Bowler.)
- Fixed CVE-2025-65018 (high severity): Heap buffer overflow in `png_combine_row` triggered
  via `png_image_finish_read`. (Reported by yosiimich@users.noreply.github.com.)
- Fixed a memory leak in `png_set_quantize`. (Reported by Samsung; analyzed by Fabio Gritti.)
- Removed the experimental and incomplete ERROR_NUMBERS code. (Contributed by Tobias Stoeckmann.)
- Improved the RISC-V vector extension support; required RVV 1.0 or newer. (Contributed by Filip Wasil.)
- Added GitHub Actions workflows for automated testing.
- Performed various refactorings and cleanups.

Ptest successfully passed:
============================================================================
Testsuite summary for libpng 1.6.51
============================================================================
 # TOTAL: 32
 # PASS:  32
 # SKIP:  0
 # XFAIL: 0
 # FAIL:  0
 # XPASS: 0
 # ERROR: 0
============================================================================

Signed-off-by: Zhang Peng <peng.zhang1.cn@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit df0121211dca11df8a495d23ff5ac6d3d820a0a6)
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
 .../libpng/{libpng_1.6.50.bb => libpng_1.6.51.bb}               | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 rename meta/recipes-multimedia/libpng/{libpng_1.6.50.bb => libpng_1.6.51.bb} (97%)

diff --git a/meta/recipes-multimedia/libpng/libpng_1.6.50.bb b/meta/recipes-multimedia/libpng/libpng_1.6.51.bb
similarity index 97%
rename from meta/recipes-multimedia/libpng/libpng_1.6.50.bb
rename to meta/recipes-multimedia/libpng/libpng_1.6.51.bb
index aa2dc99f10..e499f61ff4 100644
--- a/meta/recipes-multimedia/libpng/libpng_1.6.50.bb
+++ b/meta/recipes-multimedia/libpng/libpng_1.6.51.bb
@@ -14,7 +14,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/${BP}.tar.xz \
            file://run-ptest \
 "
 
-SRC_URI[sha256sum] = "4df396518620a7aa3651443e87d1b2862e4e88cad135a8b93423e01706232307"
+SRC_URI[sha256sum] = "a050a892d3b4a7bb010c3a95c7301e49656d72a64f1fc709a90b8aded192bed2"
 
 MIRRORS += "${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}${LIBV}/ ${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}${LIBV}/older-releases/"