tayga: add PKG_LICENSE ifnromation

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

ipv6/tayga/Makefile

@@ -9,8 +9,10 @@ PKG_RELEASE:=2
 PKG_SOURCE:=tayga-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=http://www.litech.org/tayga/
 PKG_MD5SUM:=7a7b24165ce008df772f398d86fa280e
-PKG_CAT:=bzcat
+PKG_LICENSE:=GPL-2.0
+PKG_LICENSE_FILES:=COPYING
 
+PKG_CAT:=bzcat
 PKG_BUILD_DIR:=$(BUILD_DIR)/tayga-$(PKG_VERSION)
 PKG_FIXUP:=autoreconf