SPDX: Correct SPDX tags from recent xilinx merge

Correct the SPDX tag format.

Fixes: 3b52847a45 ("Merge tag 'xilinx-for-v2018.07' of git://www.denx.de/git/u-boot-microblaze")
Signed-off-by: Tom Rini <trini@konsulko.com>

board/xilinx/zynqmp/zynqmp-zc1275-revB/psu_init_gpl.c

@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) Copyright 2015 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <asm/arch/psu_init_gpl.h>

include/configs/xilinx_zynqmp_zc1275_revB.h

@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Configuration for Xilinx ZynqMP zc1275 RevB
  *
  * (C) Copyright 2018 Xilinx, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __CONFIG_ZYNQMP_ZC1275_REVB_H

tools/zynqmpimage.h

@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2016 Michal Simek <michals@xilinx.com>
  * Copyright (C) 2015 Nathan Rossi <nathan@nathanrossi.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * The following Boot Header format/structures and values are defined in the
  * following documents:
  *   * ug1085 ZynqMP TRM doc v1.4 (Chapter 11, Table 11-4)