boot/grub: update patchlevel, update snapshot.debian.org date

Signed-off-by: Karoly Kasza <kaszak@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

boot/grub/grub.mk

@@ -6,8 +6,8 @@
 
 GRUB_VERSION = 0.97
 GRUB_SOURCE = grub_$(GRUB_VERSION).orig.tar.gz
-GRUB_PATCH = grub_$(GRUB_VERSION)-67.diff.gz
-GRUB_SITE = http://snapshot.debian.org/archive/debian/20130129T225227Z/pool/main/g/grub
+GRUB_PATCH = grub_$(GRUB_VERSION)-68.diff.gz
+GRUB_SITE = http://snapshot.debian.org/archive/debian/20141023T043132Z/pool/main/g/grub
 
 GRUB_LICENSE = GPLv2+
 GRUB_LICENSE_FILES = COPYING