jool: update to latest git version

Fixes build against kernel 4.14.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

net/jool/Makefile

@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=jool
-PKG_VERSION:=2017.03.09
+PKG_VERSION:=2018.01.17
 PKG_RELEASE:=2
 
 PKG_LICENSE:=GPL-3.0
@@ -15,10 +15,10 @@ PKG_LICENSE_FILES:=COPYING
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/NICMx/Jool.git
-PKG_SOURCE_VERSION:=997a81bb5f5e9d82aa122fd37b7c890e44a245dd
+PKG_SOURCE_VERSION:=9dfaf22e49f7905d94af9b73f9bee22c26d7dd4a
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_SOURCE_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_SOURCE_VERSION).tar.xz
-PKG_MIRROR_HASH:=a2c41119be251d4d962234fc78d7122568a5e62484969cc4e80229a0c7422fd4
+PKG_MIRROR_HASH:=79b558561f06f3df01a541b1d39b7d3d88f91d0ee6b8ce3abf91ebbed737225a
 
 PKG_BUILD_DIR=$(KERNEL_BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
 PKG_BUILD_PARALLEL:=1