arm64: zynqmp: Remove leading 0s from mtd table for spi flashes

Warnings:
arch/arm64/boot/dts/xilinx/zynqmp-ep108.dtb: Warning
(unit_address_format): Node
/amba/spi@ff040000/spi0_flash0@0/spi0_flash0@00000000 unit name should
not have leading 0s
arch/arm64/boot/dts/xilinx/zynqmp-ep108.dtb: Warning
(unit_address_format): Node
/amba/spi@ff050000/spi1_flash0@0/spi1_flash0@00000000 unit name should
not have leading 0s
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts

@@ -92,7 +92,7 @@ spi0_flash0: spi0_flash0@0 {
 		spi-max-frequency = <50000000>;
 		reg = <0>;
 
-		spi0_flash0@00000000 {
+		spi0_flash0@0 {
 			label = "spi0_flash0";
 			reg = <0x0 0x100000>;
 		};
@@ -109,7 +109,7 @@ spi1_flash0: spi1_flash0@0 {
 		spi-max-frequency = <50000000>;
 		reg = <0>;
 
-		spi1_flash0@00000000 {
+		spi1_flash0@0 {
 			label = "spi1_flash0";
 			reg = <0x0 0x100000>;
 		};