fix Makefile

kernel.mk is not needed
Fix ipk dependence

since njit 1.2 we will not link with libcrypto.so of openssl
New version 1.2-sp1

The sp1 patch adds LuCI pages
LuCI插件应支持所有CPU
更新njit8021xclient至1.3版本

源码补丁已经合并至上游njit8021xclient-1.3.tar.gz