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

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 <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210601164800.7670-4-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>