arm64: dts: Add USB nodes for APM X-Gene v1 platforms

This patch adds USB nodes into APM X-Gene v1 device tree to enable
USB support for X-Gene v1 platforms.
Signed-off-by: Duc Dang <dhdang@apm.com>

arch/arm64/boot/dts/apm/apm-storm.dtsi

@@ -799,6 +799,25 @@ sata3: sata@1a800000 {
 			phy-names = "sata-phy";
 		};
 
+		/* Do not change dwusb name, coded for backward compatibility */
+		usb0: dwusb@19000000 {
+			status = "disabled";
+			compatible = "snps,dwc3";
+			reg =  <0x0 0x19000000 0x0 0x100000>;
+			interrupts = <0x0 0x89 0x4>;
+			dma-coherent;
+			dr_mode = "host";
+		};
+
+		usb1: dwusb@19800000 {
+			status = "disabled";
+			compatible = "snps,dwc3";
+			reg =  <0x0 0x19800000 0x0 0x100000>;
+			interrupts = <0x0 0x8a 0x4>;
+			dma-coherent;
+			dr_mode = "host";
+		};
+
 		sbgpio: sbgpio@17001000{
 			compatible = "apm,xgene-gpio-sb";
 			reg = <0x0 0x17001000 0x0 0x400>;