arm64: dts: qcom: sc7180: Add APSS watchdog node

Add APSS (Application Processor Subsystem) watchdog
DT node for SC7180 SoC.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/0101016ef3391ce3-438cca2f-458c-47d9-a62a-381f1c6bfb15-000000@us-west-2.amazonses.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>