arm64: dts: imx8mm-evk: Move port under USB connector

Per nxp,ptn5110.yaml, 'port' should be placed under 'connector'.

Do as requested to fix the following dt-schema warning:

imx8mm-evkb.dtb: tcpc@50: 'port' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/usb/nxp,ptn5110.yaml#Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi

@@ -367,12 +367,6 @@ ptn5110: tcpc@50 {
 		interrupts = <11 8>;
 		status = "okay";
 
-		port {
-			typec1_dr_sw: endpoint {
-				remote-endpoint = <&usb1_drd_sw>;
-			};
-		};
-
 		typec1_con: connector {
 			compatible = "usb-c-connector";
 			label = "USB-C";
@@ -384,6 +378,12 @@ typec1_con: connector {
 				     PDO_VAR(5000, 20000, 3000)>;
 			op-sink-microwatt = <15000000>;
 			self-powered;
+
+			port {
+				typec1_dr_sw: endpoint {
+					remote-endpoint = <&usb1_drd_sw>;
+				};
+			};
 		};
 	};
 };