Relicense libgfxinit under GPL v2+

Change-Id: I5d683dda83d23e89955a4d840b5570bd8642834a
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/17052
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/common/hw-gfx-gma-pch-transcoder.adb b/common/hw-gfx-gma-pch-transcoder.adb
index bab3f31..29fbaf6 100644
--- a/common/hw-gfx-gma-pch-transcoder.adb
+++ b/common/hw-gfx-gma-pch-transcoder.adb
@@ -4,7 +4,8 @@
 --
 -- This program is free software; you can redistribute it and/or modify
 -- it under the terms of the GNU General Public License as published by
--- the Free Software Foundation; version 2 of the License.
+-- the Free Software Foundation; either version 2 of the License, or
+-- (at your option) any later version.
 --
 -- This program is distributed in the hope that it will be useful,
 -- but WITHOUT ANY WARRANTY; without even the implied warranty of