ARM: dts: imx6: add thermal sensor and cooling cells

This allows a board to specify a custom thermal zone configuration
involving the SoC internal sensor, CPU and GPU nodes without having
to change those nodes.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6q.dtsi

@@ -202,6 +202,7 @@
 				 <&clks IMX6QDL_CLK_GPU2D_CORE>;
 			clock-names = "bus", "core";
 			power-domains = <&pd_pu>;
+			#cooling-cells = <2>;
 		};
 
 		ipu2: ipu@2800000 {

arch/arm/boot/dts/imx6qdl.dtsi

@@ -77,6 +77,7 @@
 		fsl,tempmon = <&anatop>;
 		fsl,tempmon-data = <&ocotp>;
 		clocks = <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+		#thermal-sensor-cells = <0>;
 	};
 
 	ldb: ldb {
@@ -216,6 +217,7 @@
 				 <&clks IMX6QDL_CLK_GPU3D_SHADER>;
 			clock-names = "bus", "core", "shader";
 			power-domains = <&pd_pu>;
+			#cooling-cells = <2>;
 		};
 
 		gpu_2d: gpu@134000 {
@@ -226,6 +228,7 @@
 				 <&clks IMX6QDL_CLK_GPU2D_CORE>;
 			clock-names = "bus", "core";
 			power-domains = <&pd_pu>;
+			#cooling-cells = <2>;
 		};
 
 		timer@a00600 {