Restarting the at91rm9200 is done through programming the watchdog and waiting
for it to reset.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>