arm64: zynqmp: Enable USB3.0 for dc2/dc3

Both boards are usb3.0 capable. dc3 was also missing enabling dwc3* nodes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts b/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
index c70a8da..b064b3b 100644
--- a/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
+++ b/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
@@ -536,6 +536,8 @@
 &dwc3_1 {
 	status = "okay";
 	dr_mode = "host";
+	snps,usb3_lpm_capable;
+	maximum-speed = "super-speed";
 };
 
 &uart0 {