Most of the ceph tree is LGPLv2.1, but there are some files that are
under the full GPLv2.
Add a copy of the GNU General Public License (version 2) to the
distribution. This file was copied verbatim from
https://www.gnu.org/licenses/gpl-2.0.txt
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
Ken Dreyer