i2c: qup: fix copyrights and update to SPDX identifier

The file has been updated from 2016 to 2018 so fixed the
copyright years.

Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-qup.c

@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2009-2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2009-2013, 2016-2018, The Linux Foundation. All rights reserved.
  * Copyright (c) 2014, Sony Mobile Communications AB.
  *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * 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.
- *
  */
 
 #include <linux/acpi.h>