arm64: dts: qcom: SC7280: Add thermal zone support

Adding thermal zone and cooling maps support in SC7280.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rajeshwari Ravindra Kamble <rkambl@codeaurora.org>
Link: https://lore.kernel.org/r/1620367641-23383-4-git-send-email-rkambl@codeaurora.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>