openvpn: define license

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/openvpn/openvpn.mk

@@ -7,6 +7,8 @@
 OPENVPN_VERSION = 2.3.2
 OPENVPN_SITE = http://swupdate.openvpn.net/community/releases
 OPENVPN_DEPENDENCIES = host-pkgconf
+OPENVPN_LICENSE = GPLv2
+OPENVPN_LICENSE_FILES = COPYRIGHT.GPL
 OPENVPN_CONF_OPT = --disable-plugin-auth-pam --enable-iproute2
 OPENVPN_CONF_ENV = IFCONFIG=/sbin/ifconfig \
 	NETSTAT=/bin/netstat \