arm64: dts: qcom: ipq5018: add watchdog

Add the required DT node for watchdog operation.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230816161455.3310629-2-robimarko@gmail.com


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