arm: dts: rockchip: rk322x: add gpu_power_model in gpu node

Indeed, the values of the model parameters are supplied by Rocky Hao.

Change-Id: Ie6ff535eab3a1fabcd69289a0c1f32c76603a391
Signed-off-by: chenzhen <chenzhen@rock-chips.com>

Author: chenzhen

arch/arm/boot/dts/rk322x.dtsi

@@ -585,6 +585,16 @@
 		clock-names = "clk_mali";
 		operating-points-v2 = <&gpu_opp_table>;
 		status = "disabled";
+
+		gpu_power_model: power-model {
+			compatible = "arm,mali-simple-power-model";
+			voltage = <900>;
+			frequency = <500>;
+			static-power = <300>;
+			dynamic-power = <396>;
+			ts = <32000 4700 (-80) 2>;
+			thermal-zone = "soc-thermal";
+		};
 	};
 
 	gpu_opp_table: opp-table2 {