pkgconf: add license informations

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/pkgconf/pkgconf.mk

@@ -7,6 +7,8 @@
 PKGCONF_VERSION = 0.8.9
 PKGCONF_SITE = http://tortois.es/~nenolod/distfiles
 PKGCONF_SOURCE = pkgconf-$(PKGCONF_VERSION).tar.bz2
+PKGCONF_LICENSE = pkgconf license
+PKGCONF_LICENSE_FILES = COPYING
 
 PKG_CONFIG_HOST_BINARY = $(HOST_DIR)/usr/bin/pkg-config