dt-bindings: watchdog: sunxi: fix F1C100s compatible

The F1C100 series actually features a newer generation watchdog IP, so
the compatible string was wrong.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20220317162349.739636-2-andre.przywara@arm.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>