License cleanup: remove unintended "All Rights Reserved" notices.

Some files included my old standerd file header which had a "All
Rights Reserved" part. As this has never been my intention, I remove
these lines to make the files compatible with GPL v.2 and later.

Signed-off-by: Wolfgang Denk <wd@denx.de>

board/lwmon/lwmon.c

@@ -7,7 +7,6 @@ M* Content:       LWMON specific U-Boot commands.
  * (C) Copyright 2001, 2002
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
 D* Design:        wd@denx.de
 C* Coding:        wd@denx.de

drivers/input/keyboard.c

@@ -3,7 +3,6 @@
  * (C) Copyright 2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * Keyboard driver
  *

drivers/input/pc_keyb.c

@@ -3,7 +3,6 @@
  * (C) Copyright 2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * PS/2 keyboard driver
  *

drivers/input/ps2mult.c

@@ -3,7 +3,6 @@
  * (C) Copyright 2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * PS/2 multiplexer driver
  *

drivers/input/ps2ser.c

@@ -3,7 +3,6 @@
  * (C) Copyright 2004-2009
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * Simple 16550A serial driver
  *

tools/mkimage.c

@@ -4,7 +4,6 @@
  * (C) Copyright 2000-2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as

tools/mkimage.h

@@ -2,7 +2,6 @@
  * (C) Copyright 2000-2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
- * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as