nfs-utils: add license information

[Peter: license is GPLv2+]
Signed-off-by: Ryan Barnett <rjbarnet@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nfs-utils/nfs-utils.mk

@@ -7,6 +7,8 @@
 NFS_UTILS_VERSION = 1.2.6
 NFS_UTILS_SOURCE = nfs-utils-$(NFS_UTILS_VERSION).tar.bz2
 NFS_UTILS_SITE = http://downloads.sourceforge.net/project/nfs/nfs-utils/$(NFS_UTILS_VERSION)
+NFS_UTILS_LICENSE = GPLv2+
+NFS_UTILS_LICENSE_FILES = COPYING
 NFS_UTILS_AUTORECONF = YES
 NFS_UTILS_DEPENDENCIES = host-pkgconf