arm64: tegra: Enable XUSB pad controller on Jetson TX2

The XUSB pad controller is a prerequisite for enabling XUSB support.
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

@@ -115,7 +115,7 @@ hda@3510000 {
 	};
 
 	padctl@3520000 {
-		status = "disabled";
+		status = "okay";
 
 		avdd-pll-erefeut-supply = <&vdd_1v8_pll>;
 		avdd-usb-supply = <&vdd_3v3_sys>;