tools/mtd-utils: update to version 2.0.2

This version now uses autotools to configure the build system. They are
also using the newly added zlib package.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

tools/mtd-utils/patches/100-sscanf_fix.patch

@@ -1,6 +1,6 @@
---- a/mkfs.jffs2.c
-+++ b/mkfs.jffs2.c
-@@ -422,7 +422,7 @@ static int interpret_table_entry(struct
+--- a/jffsX-utils/mkfs.jffs2.c
++++ b/jffsX-utils/mkfs.jffs2.c
+@@ -427,7 +427,7 @@ static int interpret_table_entry(struct
  
  	if (sscanf (line, "%" SCANF_PREFIX "s %c %lo %lu %lu %lu %lu %lu %lu %lu",
  				SCANF_STRING(name), &type, &mode, &uid, &gid, &major, &minor,