ARM: dts: xilinx: Fix I2C and SPI bus warnings

dtc has new checks for I2C and SPI buses. Fix the warnings in node names
and unit-addresses.

arch/arm/boot/dts/zynq-zc702.dtb: Warning (i2c_bus_reg): /amba/i2c@e0004000/i2c-mux@74/i2c@7/hwmon@52: I2C bus unit address format error, expected "34"
arch/arm/boot/dts/zynq-zc702.dtb: Warning (i2c_bus_reg): /amba/i2c@e0004000/i2c-mux@74/i2c@7/hwmon@53: I2C bus unit address format error, expected "35"
arch/arm/boot/dts/zynq-zc702.dtb: Warning (i2c_bus_reg): /amba/i2c@e0004000/i2c-mux@74/i2c@7/hwmon@54: I2C bus unit address format error, expected "36"
arch/arm/boot/dts/zynq-zc770-xm013.dtb: Warning (spi_bus_reg): /amba/spi@e0006000/eeprom@0: SPI bus unit address format error, expected "2"
arch/arm/boot/dts/zynq-zc770-xm010.dtb: Warning (spi_bus_reg): /amba/spi@e0007000/flash@0: SPI bus unit address format error, expected "1"

Cc: Michal Simek <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>
Signed-off-by: Michal Simek <[e-mail]>

arch/arm/boot/dts/zynq-zc702.dts

···
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <7>;
-			hwmon@52 {
+			hwmon@34 {
 				compatible = "ti,ucd9248";
-				reg = <52>;
+				reg = <0x34>;
 			};
-			hwmon@53 {
+			hwmon@35 {
 				compatible = "ti,ucd9248";
-				reg = <53>;
+				reg = <0x35>;
 			};
-			hwmon@54 {
+			hwmon@36 {
 				compatible = "ti,ucd9248";
-				reg = <54>;
+				reg = <0x36>;
 			};
 		};
 	};

arch/arm/boot/dts/zynq-zc770-xm010.dts

···
 	status = "okay";
 	num-cs = <4>;
 	is-decoded-cs = <0>;
-	flash@0 {
+	flash@1 {
 		compatible = "sst25wf080", "jedec,spi-nor";
 		reg = <1>;
 		spi-max-frequency = <1000000>;

arch/arm/boot/dts/zynq-zc770-xm013.dts

···
 	status = "okay";
 	num-cs = <4>;
 	is-decoded-cs = <0>;
-	eeprom: eeprom@0 {
+	eeprom: eeprom@2 {
 		at25,byte-len = <8192>;
 		at25,addr-mode = <2>;
 		at25,page-size = <32>;