dt-bindings: phy: rename phy nodename in phy-rockchip-inno-usb2.yaml

dt-bindings: phy: rename phy nodename in phy-rockchip-inno-usb2.yaml

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. Remove unneeded "#phy-cells" from parent node.
Also sort example.

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>
Acked-by: Rob Herring <robh@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20210601164800.7670-2-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>