phy: berlin: switch to SPDX license identifier

Use the appropriate SPDX license identifier and drop the previous
license text.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

drivers/phy/marvell/phy-berlin-sata.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Berlin SATA PHY driver
  *
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Ténart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/clk.h>

drivers/phy/marvell/phy-berlin-usb.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Tenart <antoine.tenart@free-electrons.com>
  * Jisheng Zhang <jszhang@marvell.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/io.h>