arm64: dts: rockchip: Add USB3 on Edgeble NCM6A-IO board

Add the proper nodes to activate the USB 3.0 ports on the
Edgeble NCM6A-IO board.

Cc: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Anand Moon <anand@edgeble.ai>
Link: https://lore.kernel.org/r/20240502094246.4695-2-anand@edgeble.aiSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588-edgeble-neu6a-io.dtsi

@@ -68,6 +68,10 @@ &combphy1_ps {
 	status = "okay";
 };
 
+&combphy2_psu {
+	status = "okay";
+};
+
 &i2c6 {
 	status = "okay";
 
@@ -230,3 +234,7 @@ &usb_host1_ehci {
 &usb_host1_ohci {
 	status = "okay";
 };
+
+&usb_host2_xhci {
+	status = "okay";
+};