libpng: bump version

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

CHANGES

@@ -6,7 +6,7 @@
 	X.org updated to 7.5.
 
 	Updated/fixed packages: busybox, dosfstools, e2fsprogs,
-	libglib2, mtd-utils, setserial, squashfs
+	libglib2, libpng, mtd-utils, setserial, squashfs
 
 	Issues resolved (http://bugs.uclibc.org):
 

package/libpng/libpng.mk

@@ -3,7 +3,7 @@
 # libpng (Portable Network Graphic library)
 #
 #############################################################
-LIBPNG_VERSION:=1.2.38
+LIBPNG_VERSION:=1.2.43
 LIBPNG_SITE = http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/libpng
 LIBPNG_SOURCE = libpng-$(LIBPNG_VERSION).tar.bz2
 LIBPNG_LIBTOOL_PATCH = NO