ARM: dts: rockchip: rename nodename for phy-rockchip-inno-usb2

The pattern: "^(|usb-|usb2-|usb3-|pci-|pcie-|sata-)phy(@[0-9a-f,]+)*$"
in phy-provider.yaml has required "#phy-cells" for phy nodes.
The "phy-cells" in rockchip-inno-usb2 nodes are located in subnodes.
Rename the nodename to pattern "usb2phy@[0-9a-f]+$" to prevent
notifications.

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=~/.local/lib/python3.5/site-packages/dtschema/schemas/
phy/phy-provider.yaml

Signed-off-by: Johan Jonker <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Stuebner <[e-mail]>

arch/arm/boot/dts/rk322x.dtsi

···
 			status = "disabled";
 		};
 
-		u2phy0: usb2-phy@760 {
+		u2phy0: usb2phy@760 {
 			compatible = "rockchip,rk3228-usb2phy";
 			reg = <0x0760 0x0c>;
 			clocks = <&cru SCLK_OTGPHY0>;
···
 			};
 		};
 
-		u2phy1: usb2-phy@800 {
+		u2phy1: usb2phy@800 {
 			compatible = "rockchip,rk3228-usb2phy";
 			reg = <0x0800 0x0c>;
 			clocks = <&cru SCLK_OTGPHY1>;

arch/arm/boot/dts/rv1108.dtsi

···
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		u2phy: usb2-phy@100 {
+		u2phy: usb2phy@100 {
 			compatible = "rockchip,rv1108-usb2phy";
 			reg = <0x100 0x0c>;
 			clocks = <&cru SCLK_USBPHY>;