fconfig: add license information

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/fconfig/fconfig.mk

@@ -6,6 +6,8 @@
 
 FCONFIG_VERSION = 20080329
 FCONFIG_SITE = http://andrzejekiert.ovh.org/software/fconfig/
+FCONFIG_LICENSE = GPLv2+
+FCONFIG_LICENSE_FILES = fconfig.c
 
 define FCONFIG_BUILD_CMDS
 	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) \