ARM: dts: qcom: msm8974: Add watchdog node

Add watchdog for MSM8974 platform.

Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231011-msm8226-msm8974-watchdog-v1-3-2c472818fbce@z3ntu.xyz


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