cdrkit: add license informations

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

package/cdrkit/cdrkit.mk

@@ -7,6 +7,8 @@
 CDRKIT_VERSION = 1.1.11
 CDRKIT_SITE = http://www.cdrkit.org/releases
 CDRKIT_DEPENDENCIES = libcap bzip2 zlib
+CDRKIT_LICENSE = GPLv2
+CDRKIT_LICENSE_FILES = COPYING
 
 ifeq ($(BR2_ENDIAN),"BIG")
 CMAKE_ENDIAN_OPT=-DBITFIELDS_HTOL=1