arm64: dts: qcom: sm8250: Add watchdog bark interrupt

Specify bark interrupt for APSS watchdog to support pre-timeout
notification on SM8250 SoC.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/ff0758b158d62e82fd0636f5861115f435f821ac.1611466260.git.saiprakash.ranjan@codeaurora.org


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