arm64: dts: renesas: r8a7795: salvator-xs: enable USB2.0 host channel 3

This patch enables USB2.0 host channel 3 for r8a7795 with Salvator-XS.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-salvator-xs.dts

@@ -56,6 +56,11 @@ &ehci2 {
 	status = "okay";
 };
 
+&ehci3 {
+	dr_mode = "otg";
+	status = "okay";
+};
+
 &hsusb3 {
 	dr_mode = "otg";
 	status = "okay";
@@ -117,6 +122,11 @@ &ohci2 {
 	status = "okay";
 };
 
+&ohci3 {
+	dr_mode = "otg";
+	status = "okay";
+};
+
 &rcar_sound {
 	ports {
 		/* rsnd_port0 is on salvator-common */