Enable the watchdog, so the board can be restarted by a watchdog
timeout.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NFabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>