phy: phy-rockchip-inno-usb2: add phy description for px30

The px30 soc from Rockchip shares the same register description as
the rk3328, so can re-use its definitions.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt

@@ -2,6 +2,7 @@ ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
 
 Required properties (phy (parent) node):
  - compatible : should be one of the listed compatibles:
+	* "rockchip,px30-usb2phy"
 	* "rockchip,rk3228-usb2phy"
 	* "rockchip,rk3328-usb2phy"
 	* "rockchip,rk3366-usb2phy"

drivers/phy/rockchip/phy-rockchip-inno-usb2.c

@@ -1423,6 +1423,7 @@ static const struct rockchip_usb2phy_cfg rv1108_phy_cfgs[] = {
 };
 
 static const struct of_device_id rockchip_usb2phy_dt_match[] = {
+	{ .compatible = "rockchip,px30-usb2phy", .data = &rk3328_phy_cfgs },
 	{ .compatible = "rockchip,rk3228-usb2phy", .data = &rk3228_phy_cfgs },
 	{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
 	{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },