ARM: dts: ast2600: Make WDT by default disabled

The WDT devices described in the general .dtsi file
should be marked as "disabled" by default.

A WDT should be then enabled in the board specific
.dts file on demands.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Ryan Chen <ryan_chen@aspeedtech.com>
1 file changed