tools/quilt: update to 0.68

Release Notes:
https://savannah.nongnu.org/news/?id=10611

Signed-off-by: Nick Hainke <vincent@systemli.org>

tools/quilt/Makefile

@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=quilt
-PKG_VERSION:=0.67
+PKG_VERSION:=0.68
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SAVANNAH/quilt
-PKG_HASH:=3be3be0987e72a6c364678bb827e3e1fcc10322b56bc5f02b576698f55013cc2
+PKG_HASH:=fe8c09de03c106e85b3737c8f03ade147c956b79ed7af485a1c8a3858db38426
 
 include $(INCLUDE_DIR)/host-build.mk