Add GPL-2.0+ SPDX-License-Identifier to source files

Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/davinci/dvevm/Makefile b/board/davinci/dvevm/Makefile
index 49897f9..870314a 100644
--- a/board/davinci/dvevm/Makefile
+++ b/board/davinci/dvevm/Makefile
@@ -4,23 +4,7 @@
 #
 # Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
 #
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# 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.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
+# SPDX-License-Identifier:	GPL-2.0+
 #
 
 include $(TOPDIR)/config.mk
diff --git a/board/davinci/dvevm/board_init.S b/board/davinci/dvevm/board_init.S
index 81b23d0..ded0590 100644
--- a/board/davinci/dvevm/board_init.S
+++ b/board/davinci/dvevm/board_init.S
@@ -5,20 +5,7 @@
  * of arch/arm/cpu/arm926ejs/davinci/lowlevel_init.S. Just returns if there is no
  * initialization required.
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/board/davinci/dvevm/dvevm.c b/board/davinci/dvevm/dvevm.c
index d5c851b..c34bde4 100644
--- a/board/davinci/dvevm/dvevm.c
+++ b/board/davinci/dvevm/dvevm.c
@@ -8,19 +8,7 @@
  * Copyright (C) 2004 Texas Instruments.
  *
  * ----------------------------------------------------------------------------
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * SPDX-License-Identifier:	GPL-2.0+
  * ----------------------------------------------------------------------------
  */