ARM: dts: imx6qdl: move iomuxc compatible assignment out of root node

The common imx6qdl.dtsi already defines the iomuxc phandle. Make use of
it in the imx6dl.dtsi and imx6q.dtsi.

Signed-off-by: Marco Felsch <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6dl.dtsi

···
 		};
 
 		aips1: bus@2000000 {
-			iomuxc: pinctrl@20e0000 {
-				compatible = "fsl,imx6dl-iomuxc";
-			};
-
 			pxp: pxp@20f0000 {
 				reg = <0x020f0000 0x4000>;
 				interrupts = <0 98 IRQ_TYPE_LEVEL_HIGH>;
···
 
 &hdmi {
 	compatible = "fsl,imx6dl-hdmi";
+};
+
+&iomuxc {
+	compatible = "fsl,imx6dl-iomuxc";
 };
 
 &ipu1_csi1 {

arch/arm/boot/dts/imx6q.dtsi

···
 					status = "disabled";
 				};
 			};
-
-			iomuxc: pinctrl@20e0000 {
-				compatible = "fsl,imx6q-iomuxc";
-			};
 		};
 
 		sata: sata@2200000 {
···
 			remote-endpoint = <&ipu2_di1_hdmi>;
 		};
 	};
+};
+
+&iomuxc {
+	compatible = "fsl,imx6q-iomuxc";
 };
 
 &ipu1_csi1 {