Add copyright information in Atmel boards partition.c

When Ulf did the dataflash.c cleanup, he didn't add his copyright on
the new created files. This patch fixes the problem.

Signed-off-by: Stelian Pop <stelian@popies.net>

board/atmel/at91cap9adk/partition.c

 /*
+ * (C) Copyright 2008
+ * Ulf Samuelsson <ulf@atmel.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as

board/atmel/at91rm9200dk/partition.c

 /*
+ * (C) Copyright 2008
+ * Ulf Samuelsson <ulf@atmel.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as

board/atmel/at91sam9260ek/partition.c

 /*
+ * (C) Copyright 2008
+ * Ulf Samuelsson <ulf@atmel.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as