platform/chrome: cros_ec_spi: switch to SPDX identifier

/*

 * ChromeOS EC multi-function device (SPI)

 *

 * Copyright (C) 2012 Google, Inc

 *

 * This software is licensed under the terms of the GNU General Public

 * License version 2, as published by the Free Software Foundation, and

 * may be copied, distributed, and modified under those terms.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

// SPDX-License-Identifier: GPL-2.0

// SPI interface for ChromeOS Embedded Controller

//

// Copyright (C) 2012 Google, Inc

#include <linux/delay.h>

#include <linux/kernel.h>

module_spi_driver(cros_ec_driver_spi);

MODULE_LICENSE("GPL v2");

MODULE_DESCRIPTION("ChromeOS EC multi function device (SPI)");

MODULE_DESCRIPTION("SPI interface for ChromeOS Embedded Controller");