arm64: dts: rockchip: Enable the Thermal on R88 board

This patch enable the TS-ADC.

When a thermal temperature is invoked use the CRU to reset the chip
on R88 board. TSHUT is low active on this board.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3368-r88.dts

@@ -336,6 +336,12 @@ &saradc {
 	status = "okay";
 };
 
+&tsadc {
+	rockchip,hw-tshut-mode = <0>; /* tshut mode 0:CRU 1:GPIO */
+	rockchip,hw-tshut-polarity = <0>; /* tshut polarity 0:LOW 1:HIGH */
+	status = "okay";
+};
+
 &uart2 {
 	status = "okay";
 };