mmc: dw_mmc-bluefield: : Fix the license information

commit f3716b8ae9347797b73896725f192c3a7b0069b5 upstream.

The SPDX license identifier and the boiler plate text are
contradicting. Only the SPDX license identifier is needed. The
other one is removed.

Fixes: 86958dcc ("mmc: dw_mmc-bluefield: Add driver extension")
Cc: stable@vger.kernel.org
Reviewed-by: NDavid Woods <dwoods@mellanox.com>
Signed-off-by: NLiming Sun <lsun@mellanox.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/mmc/host/dw_mmc-bluefield.c

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2018 Mellanox Technologies.
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/bitfield.h>