wipe: add license information

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

package/wipe/wipe.mk

@@ -8,6 +8,8 @@ WIPE_VERSION = 2.3.1
 WIPE_SITE = http://downloads.sourceforge.net/project/wipe/wipe/$(WIPE_VERSION)
 WIPE_SOURCE = wipe-$(WIPE_VERSION).tar.bz2
 WIPE_AUTORECONF = YES
+WIPE_LICENSE = GPLv2+
+WIPE_LICENSE_FILES = LICENSE
 
 define WIPE_INSTALL_TARGET_CMDS
 	$(INSTALL) -D $(@D)/wipe $(TARGET_DIR)/usr/bin/wipe