linux-imx

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>