arm64: dts: rockchip: add lower USB3 port to rock-5b

Enable full support (XHCI, EHCI, OHCI) for the lower USB3 port from
Radxa Rock 5 Model B. The upper one is already supported.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20240408225109.128953-11-sebastian.reichel@collabora.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts

@@ -747,6 +747,14 @@ &uart2 {
 	status = "okay";
 };
 
+&u2phy1 {
+	status = "okay";
+};
+
+&u2phy1_otg {
+	status = "okay";
+};
+
 &u2phy2 {
 	status = "okay";
 };
@@ -766,6 +774,10 @@ &u2phy3_host {
 	status = "okay";
 };
 
+&usbdp_phy1 {
+	status = "okay";
+};
+
 &usb_host0_ehci {
 	status = "okay";
 };
@@ -782,6 +794,11 @@ &usb_host1_ohci {
 	status = "okay";
 };
 
+&usb_host1_xhci {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &usb_host2_xhci {
 	status = "okay";
 };