ghostscript: Rebase patches

mingw-w64-ghostscript/002-ghostscript-sys-zlib.patch

@@ -1,11 +1,11 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -912,7 +912,7 @@
+@@ -1390,7 +1390,7 @@
  dnl zlib is needed for language level 3, and libpng
  # we must define ZLIBDIR regardless because png.mak does a -I$(ZLIBDIR)
  # this seems a harmless default
 -ZLIBDIR=src
 +ZLIBDIR=$includedir
  AUX_SHARED_ZLIB=
+ ZLIBCFLAGS=""
  
- if test -d $srcdir/zlib; then