ARM64: dts: rockchip: add the thermal main info found on rk3399

ARM64: dts: rockchip: add the thermal main info found on rk3399

This patch adds the thermal needed main information for rk3399 SoCS.

Basically has the following content:

1) TSADC controller:
    Add the needed attributes for rk3399 TSADC controller.
    Especially for the TSHUT, in some cases if we are unable to shut it down
    in orderly fashion (says: kernel is stuck holding a lock or similar), then
    hardware TSHUT will reset it.
    If the temperature is over 95C over a period of time the thermal shutdown
    of the tsadc is invoked with can either reset the entire chip via the CRU,
    or notify the PMIC via a GPIO. This should be set in the specific board.

2) Thermal zones:
    Add the needed device mode for thermal generic framework.
    Detail in Documentation/devicetree/bindings/thermal/thermal.txt.

Change-Id: I1361beeb85e6d4a134b4640c16440452aa950e16
Signed-off-by: Caesar Wang <wxt@rock-chips.com>