dt-bindings: Remove leading zeros from bindings notation

Improve the binding example by removing all the leading zeros to fix the
following dtc warnings:

Warning (unit_address_format): Node /XXX unit name should not have leading 0s

Converted using the following command:

perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"`

Some unnecessary changes were manually fixed.

Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt

@@ -15,7 +15,7 @@ Required properties For the child node:
 - #phy-cells: must be 0
 
 Example:
-	pcie_phy: phy@0301d0a0 {
+	pcie_phy: phy@301d0a0 {
 		compatible = "brcm,cygnus-pcie-phy";
 		reg = <0x0301d0a0 0x14>;
 

Documentation/devicetree/bindings/phy/mxs-usb-phy.txt

@@ -23,7 +23,7 @@ Optional properties:
   the 17.78mA TX reference current. Default: 100
 
 Example:
-usbphy1: usbphy@020c9000 {
+usbphy1: usbphy@20c9000 {
 	compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy";
 	reg = <0x020c9000 0x1000>;
 	interrupts = <0 44 0x04>;

Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt

@@ -25,7 +25,7 @@ It is recommended to list all clocks and resets available.
 The driver will only use those matching the phy_type.
 
 Example:
-	usbphy1: phy@00a01800 {
+	usbphy1: phy@a01800 {
 		compatible = "allwinner,sun9i-a80-usb-phy";
 		reg = <0x00a01800 0x4>;
 		clocks = <&usb_phy_clk 2>, <&usb_phy_clk 10>,