bzip2: define license

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/bzip2/bzip2.mk

@@ -7,6 +7,8 @@
 BZIP2_VERSION = 1.0.6
 BZIP2_SITE = http://www.bzip.org/$(BZIP2_VERSION)
 BZIP2_INSTALL_STAGING = YES
+BZIP2_LICENSE = bzip2 license
+BZIP2_LICENSE_FILES = LICENSE
 
 define BZIP2_FIX_MAKEFILE
 	$(SED) "s,ln \$$(,ln -snf \$$(,g" $(@D)/Makefile