xavante: add license info

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/xavante/xavante.mk

@@ -7,6 +7,7 @@
 XAVANTE_VERSION = 2.2.1
 XAVANTE_SITE = http://github.com/downloads/keplerproject/xavante
 XAVANTE_DEPENDENCIES = cgilua copas coxpcall lua luafilesystem luasocket wsapi
+XAVANTE_LICENSE = MIT
 
 define XAVANTE_INSTALL_TARGET_CMDS
 	$(MAKE) -C $(@D) PREFIX=/usr \