arm: dts: rockchip: radxa-cm3-io, rock-3a: enable regulators for usb

enable regulators for usb host function

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi b/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
index 10226b0..801c91a 100644
--- a/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
+++ b/arch/arm/dts/rk3568-rock-3a-u-boot.dtsi
@@ -34,3 +34,11 @@
 	bootph-all;
 	status = "okay";
 };
+
+&vcc5v0_usb_host {
+	regulator-boot-on;
+};
+
+&vcc5v0_usb_hub {
+	regulator-boot-on;
+};