libs/libgcrypt: add license tag

add license tag

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

libs/libgcrypt/Makefile

@@ -14,6 +14,8 @@ PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=ftp://ftp.gnupg.org/gcrypt/libgcrypt
 PKG_HASH:=f9461b4619bb78b273a88d468915750d418e89a3ea3b641bab0563a9af4b04d0
+PKG_LICENSE:=LGPL-2.1+ GPL-2.0+
+PKG_LICENSE_FILES:=COPYING
 
 PKG_FIXUP:=patch-libtool
 PKG_INSTALL:=1