dt-bindings: soc: rockchip: add rk3588 USB3 syscon

RK3588 USB3 support requires the GRF for USB and USBDP PHY.

Acked-by: Conor Dooley <[email protected]>
Signed-off-by: Sebastian Reichel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

Author: sre

Documentation/devicetree/bindings/soc/rockchip/grf.yaml

@@ -29,6 +29,8 @@ properties:
               - rockchip,rk3588-sys-grf
               - rockchip,rk3588-pcie3-phy-grf
               - rockchip,rk3588-pcie3-pipe-grf
+              - rockchip,rk3588-usb-grf
+              - rockchip,rk3588-usbdpphy-grf
               - rockchip,rk3588-vo-grf
               - rockchip,rk3588-vop-grf
               - rockchip,rv1108-usbgrf