dt-bindings: phy: rockchip,inno-usb2phy: add rk3588

Add compatible for the USB2 phy in the Rockchip RK3588 SoC.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230522170324.61349-2-sebastian.reichel@collabora.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>