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/firmware/nvidia,tegra186-bpmp.txt

@@ -66,7 +66,7 @@ See ".../sram/sram.txt" for the bindings.
 
 Example:
 
-hsp_top0: hsp@03c00000 {
+hsp_top0: hsp@3c00000 {
 	...
 	#mbox-cells = <2>;
 };