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/at91sam9263.dtsi

@@ -62,12 +62,12 @@
 		};
 	};
 
-	sram0: sram@00300000 {
+	sram0: sram@300000 {
 		compatible = "mmio-sram";
 		reg = <0x00300000 0x14000>;
 	};
 
-	sram1: sram@00500000 {
+	sram1: sram@500000 {
 		compatible = "mmio-sram";
 		reg = <0x00500000 0x4000>;
 	};
@@ -1010,7 +1010,7 @@
 			status = "disabled";
 		};
 
-		usb0: ohci@00a00000 {
+		usb0: ohci@a00000 {
 			compatible = "atmel,at91rm9200-ohci", "usb-ohci";
 			reg = <0x00a00000 0x100000>;
 			interrupts = <29 IRQ_TYPE_LEVEL_HIGH 2>;