arm64: tegra: Update OTG port entries for Jetson TX2

Add usb-role-switch entry to OTG USB port and add corresponding
connector details.
Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts

@@ -174,8 +174,20 @@ ports {
 			usb2-0 {
 				status = "okay";
 				mode = "otg";
-
 				vbus-supply = <&vdd_usb0>;
+
+				usb-role-switch;
+				connector {
+					compatible = "usb-b-connector",
+						     "gpio-usb-b-connector";
+					label = "micro-USB";
+					type = "micro";
+					vbus-gpio = <&gpio
+						     TEGRA186_MAIN_GPIO(X, 7)
+						     GPIO_ACTIVE_LOW>;
+					id-gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
+				};
+
 			};
 
 			usb2-1 {