kcptun: bump to v20200103

Reference: https://github.com/xtaci/kcptun/releases/tag/v20200103

Signed-off-by: Chao Liu <expiron18@gmail.com>

net/kcptun/Makefile

@@ -1,13 +1,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=kcptun
-PKG_VERSION:=20191112
-PKG_RELEASE:=2
+PKG_VERSION:=20200103
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/xtaci/kcptun/tar.gz/v${PKG_VERSION}?
-PKG_SOURCE_DATE:=2019-11-12
-PKG_HASH:=63fd7647cce7488c193ed74f96c2ec377b8b7466f0661bf021d414c68c2fe78b
+PKG_SOURCE_DATE:=2020-01-03
+PKG_HASH:=620d4cd3ed1660e71b0fe1041c063e8fb38dc3aa7a6c78f6570e812566f44bb5
 
 PKG_MAINTAINER:=Dengfeng Liu <liudf0716@gmail.com>, Chao Liu <expiron18@gmail.com>
 PKG_LICENSE:=MIT