arm: dts: fix unit-address leading 0s

Fix dtc warnings for 'simple_bus_reg' due to leading 0s. Converted using
the following command:

perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find arch/arm/boot/dts -type -f -name '*.dts*'

Dropped changes to ARM, Ltd. boards LED nodes and manually fixed up some
occurrences of uppercase hex.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/imx50.dtsi

@@ -52,7 +52,7 @@
 		};
 	};
 
-	tzic: tz-interrupt-controller@0fffc000 {
+	tzic: tz-interrupt-controller@fffc000 {
 		compatible = "fsl,imx50-tzic", "fsl,imx53-tzic", "fsl,tzic";
 		interrupt-controller;
 		#interrupt-cells = <1>;