dt-bindings: watchdog: Add binding for Qcom SDX65

Add devicetree binding for watchdog present in Qcom SDX65 platform.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
https://lore.kernel.org/r/1654080312-5408-10-git-send-email-quic_rohiagar@quicinc.com


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