arm: zynq: Update years in copyright to reflect latest changes

Updating year in zynq files. Also add missing Copyright to board.c.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/mach-zynq/ddrc.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 - 2013 Michal Simek <monstr@monstr.eu>
- * Copyright (C) 2012 - 2013 Xilinx, Inc. All rights reserved.
+ * Copyright (C) 2012 - 2017 Xilinx, Inc. All rights reserved.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

arch/arm/mach-zynq/lowlevel_init.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Xilinx, Inc. All rights reserved.
+ * Copyright (C) 2013 - 2015 Xilinx, Inc. All rights reserved.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

arch/arm/mach-zynq/slcr.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013 Xilinx Inc.
+ * Copyright (c) 2013 - 2017 Xilinx Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

arch/arm/mach-zynq/spl.c

@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2014 Xilinx, Inc. Michal Simek
+ * (C) Copyright 2014 - 2017 Xilinx, Inc. Michal Simek
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

arch/arm/mach-zynq/timer.c

@@ -3,7 +3,7 @@
  * Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
  *
  * Copyright (C) 2012 Michal Simek <monstr@monstr.eu>
- * Copyright (C) 2011-2012 Xilinx, Inc. All rights reserved.
+ * Copyright (C) 2011-2017 Xilinx, Inc. All rights reserved.
  *
  * (C) Copyright 2008
  * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>

board/xilinx/zynq/board.c

@@ -1,5 +1,6 @@
 /*
  * (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
+ * (C) Copyright 2013 - 2018 Xilinx, Inc.
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

include/configs/zynq-common.h

@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
- * (C) Copyright 2013 Xilinx, Inc.
+ * (C) Copyright 2013 - 2018 Xilinx, Inc.
  *
  * Common configuration options for all Zynq boards.
  *