git: openjdk/jdk11u-dev: 8348598: Update Libpng to 1.6.47

[Andrew John Hughes]

Changeset: 61227856
Branch: master
Author:    Antonio Vieiro <avieirov at redhat.com>
Committer: Andrew John Hughes <andrew at openjdk.org>
Date:      2025-05-08 20:35:12 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/61227856ccd28d887d56d0c93eabd07cf6b026d3

8348598: Update Libpng to 1.6.47

Reviewed-by: sgehwolf, andrew
Backport-of: 025da55defb4428a0cbc75b24842513011f1220d

! make/lib/Awt2dLibraries.gmk
! src/java.desktop/share/legal/libpng.md
! src/java.desktop/share/native/libsplashscreen/libpng/CHANGES
! src/java.desktop/share/native/libsplashscreen/libpng/LICENSE
! src/java.desktop/share/native/libsplashscreen/libpng/README
! src/java.desktop/share/native/libsplashscreen/libpng/png.c
! src/java.desktop/share/native/libsplashscreen/libpng/png.h
! src/java.desktop/share/native/libsplashscreen/libpng/pngconf.h
! src/java.desktop/share/native/libsplashscreen/libpng/pngerror.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngget.c
! src/java.desktop/share/native/libsplashscreen/libpng/pnginfo.h
! src/java.desktop/share/native/libsplashscreen/libpng/pnglibconf.h
! src/java.desktop/share/native/libsplashscreen/libpng/pngmem.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngpread.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngpriv.h
! src/java.desktop/share/native/libsplashscreen/libpng/pngread.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngrtran.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngrutil.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngset.c
! src/java.desktop/share/native/libsplashscreen/libpng/pngstruct.h