SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/logicpd/am3517evm/Makefile b/board/logicpd/am3517evm/Makefile
index 73b11df..c07a98e9 100644
--- a/board/logicpd/am3517evm/Makefile
+++ b/board/logicpd/am3517evm/Makefile
@@ -1,11 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Author: Vaibhav Hiremath <hvaibhav@ti.com>
 #
 # Based on ti/evm/Makefile
 #
 # Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= am3517evm.o
diff --git a/board/logicpd/am3517evm/am3517evm.c b/board/logicpd/am3517evm/am3517evm.c
index 29f136a..bcd3588 100644
--- a/board/logicpd/am3517evm/am3517evm.c
+++ b/board/logicpd/am3517evm/am3517evm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * am3517evm.c - board file for TI's AM3517 family of devices.
  *
@@ -7,8 +8,6 @@
  *
  * Copyright (C) 2010
  * Texas Instruments Incorporated - http://www.ti.com/
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/logicpd/am3517evm/am3517evm.h b/board/logicpd/am3517evm/am3517evm.h
index a6a55ee..99a0803 100644
--- a/board/logicpd/am3517evm/am3517evm.h
+++ b/board/logicpd/am3517evm/am3517evm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * am3517evm.h - Header file for the AM3517 EVM.
  *
@@ -7,8 +8,6 @@
  *
  * Copyright (C) 2010
  * Texas Instruments Incorporated - http://www.ti.com/
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef _AM3517EVM_H_
diff --git a/board/logicpd/imx6/imx6logic.c b/board/logicpd/imx6/imx6logic.c
index 1f3e378..8440563 100644
--- a/board/logicpd/imx6/imx6logic.c
+++ b/board/logicpd/imx6/imx6logic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017 Logic PD, Inc.
  *
@@ -5,8 +6,6 @@
  *
  * Based on SabreSD by Fabio Estevam <fabio.estevam@nxp.com>
  * and updates by Jagan Teki <jagan@amarulasolutions.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/logicpd/imx6/mx6q_2x_MT41K512M16HA.cfg b/board/logicpd/imx6/mx6q_2x_MT41K512M16HA.cfg
index a757461..6d7e29d 100644
--- a/board/logicpd/imx6/mx6q_2x_MT41K512M16HA.cfg
+++ b/board/logicpd/imx6/mx6q_2x_MT41K512M16HA.cfg
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2017 Logic PD, Inc.
  * Adam Ford <aford173@gmail.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * Refer doc/README.imximage for more details about how-to configure
  * and create imximage boot image
  *
diff --git a/board/logicpd/omap3som/Makefile b/board/logicpd/omap3som/Makefile
index 87b86ad..61ef14e 100644
--- a/board/logicpd/omap3som/Makefile
+++ b/board/logicpd/omap3som/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000, 2001, 2002
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= omap3logic.o
diff --git a/board/logicpd/omap3som/omap3logic.c b/board/logicpd/omap3som/omap3logic.c
index 4cbbf96..fbad89b 100644
--- a/board/logicpd/omap3som/omap3logic.c
+++ b/board/logicpd/omap3som/omap3logic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2011
  * Logic Product Development <www.logicpd.com>
@@ -8,8 +9,6 @@
  * Derived from Beagle Board and 3430 SDP code by
  *	Richard Woodruff <r-woodruff2@ti.com>
  *	Syed Mohammed Khasim <khasim@ti.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>
diff --git a/board/logicpd/omap3som/omap3logic.h b/board/logicpd/omap3som/omap3logic.h
index 7376119..a5601f7 100644
--- a/board/logicpd/omap3som/omap3logic.h
+++ b/board/logicpd/omap3som/omap3logic.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * Logic Product Development <www.logicpd.com>
  *
  * Author:
  * Peter Barada <peter.barada@logicpd.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #ifndef _OMAP3LOGIC_H_
 #define _OMAP3LOGIC_H_
diff --git a/board/logicpd/zoom1/Makefile b/board/logicpd/zoom1/Makefile
index 7da0da0..e73b42e 100644
--- a/board/logicpd/zoom1/Makefile
+++ b/board/logicpd/zoom1/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000, 2001, 2002
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	:= zoom1.o
diff --git a/board/logicpd/zoom1/config.mk b/board/logicpd/zoom1/config.mk
index c7ebfd9..a8e4f52 100644
--- a/board/logicpd/zoom1/config.mk
+++ b/board/logicpd/zoom1/config.mk
@@ -1,12 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2006-2008
 # Texas Instruments, <www.ti.com>
 #
 # Zoom MDK uses OMAP3 (ARM-CortexA8) cpu
 # see http://www.ti.com/ for more information on Texas Instruments
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 # Physical Address:
 # 8000'0000 (bank0)
 # A000/0000 (bank1)
diff --git a/board/logicpd/zoom1/zoom1.c b/board/logicpd/zoom1/zoom1.c
index fe1183b..5e32077 100644
--- a/board/logicpd/zoom1/zoom1.c
+++ b/board/logicpd/zoom1/zoom1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2004-2008
  * Texas Instruments, <www.ti.com>
@@ -11,8 +12,6 @@
  *	Richard Woodruff <r-woodruff2@ti.com>
  *	Syed Mohammed Khasim <khasim@ti.com>
  *
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>
diff --git a/board/logicpd/zoom1/zoom1.h b/board/logicpd/zoom1/zoom1.h
index 3a943df..6384761 100644
--- a/board/logicpd/zoom1/zoom1.h
+++ b/board/logicpd/zoom1/zoom1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2008
  * Texas Instruments
@@ -5,8 +6,6 @@
  *
  * Derived from: board/omap3/beagle/beagle.h
  * Dirk Behme <dirk.behme@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #ifndef _BOARD_ZOOM1_H_
 #define _BOARD_ZOOM1_H_