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/drivers/sound/Makefile b/drivers/sound/Makefile
index 1987ca1..c50dd15 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -2,23 +2,7 @@
 # Copyright (C) 2012 Samsung Electronics
 # R. Chandrasekar <rcsekar@samsung.com>
 #
-# 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/drivers/sound/samsung-i2s.c b/drivers/sound/samsung-i2s.c
index 9f3117d..49921e5 100644
--- a/drivers/sound/samsung-i2s.c
+++ b/drivers/sound/samsung-i2s.c
@@ -2,23 +2,7 @@
  * Copyright (C) 2012 Samsung Electronics
  * R. Chandrasekar <rcsekar@samsung.com>
  *
- * 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 <asm/arch/clk.h>
diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c
index a4bf4ad..6fcc75d 100644
--- a/drivers/sound/sound.c
+++ b/drivers/sound/sound.c
@@ -2,23 +2,7 @@
  * Copyright (C) 2012 Samsung Electronics
  * R. Chandrasekar <rcsekar@samsung.com>
  *
- * 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 <malloc.h>
diff --git a/drivers/sound/wm8994.c b/drivers/sound/wm8994.c
index 3b673b4..37e354c 100644
--- a/drivers/sound/wm8994.c
+++ b/drivers/sound/wm8994.c
@@ -2,23 +2,7 @@
  * Copyright (C) 2012 Samsung Electronics
  * R. Chandrasekar <rcsekar@samsung.com>
  *
- * 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 <asm/arch/clk.h>
 #include <asm/arch/cpu.h>
diff --git a/drivers/sound/wm8994.h b/drivers/sound/wm8994.h
index a1e8335..6d0c7ca 100644
--- a/drivers/sound/wm8994.h
+++ b/drivers/sound/wm8994.h
@@ -2,23 +2,7 @@
  * Copyright (C) 2012 Samsung Electronics
  * R. Chadrasekar <rcsekar@samsung.com>
  *
- * 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+
  */
 
 #ifndef __WM8994_H__
diff --git a/drivers/sound/wm8994_registers.h b/drivers/sound/wm8994_registers.h
index f455b11..1e987c2 100644
--- a/drivers/sound/wm8994_registers.h
+++ b/drivers/sound/wm8994_registers.h
@@ -1,11 +1,7 @@
 /*
  * (C) Copyright 2012 Samsung Electronics
  *
- *  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.
- *
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __WM8994_REGISTERS_H__