Upgrade libpng to 1.2.44 for security fixes.

Change-Id: Iae257ca6ea7031a99f38e9de196d71ef8b94f9aa
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 0247bb8..fa0501f 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -3,7 +3,7 @@
 # make includes && make install
 # Copyright (C) 2002 Patrick R.L. Welche
 # Copyright (C) 2007, 2009 Glenn Randers-Pehrson
-
+#
 # This code is released under the libpng license.
 # For conditions of distribution and use, see the disclaimer
 # and license in png.h
@@ -17,7 +17,7 @@
 
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.38
+SHLIB_MINOR=	1.2.44
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c