ARM: lpc32xx: remove reboot header file

The header file "reboot.h" is no longer needed, following
the migration of the restart code into the pnx4008 watchdog.
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

arch/arm/mach-lpc32xx/common.h

@@ -21,7 +21,6 @@
 
 #include <mach/board.h>
 #include <linux/platform_device.h>
-#include <linux/reboot.h>
 
 /*
  * Other arch specific structures and functions