ARM: zynq: Point via nvmem0 alias to eeprom on zc702/zc706

EEPROM stores identification information about board like a board name,
revision, serial number and ethernet MAC address. U-Boot is capable to read
nvmemX aliases and read/display provided information when nvmem alias link
is described.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/c63bba87d0400b6bd0f5651fac21d525f12288f5.1664265311.git.michal.simek@amd.com
diff --git a/arch/arm/dts/zynq-zc702.dts b/arch/arm/dts/zynq-zc702.dts
index 1bd4f8c..99ee87b 100644
--- a/arch/arm/dts/zynq-zc702.dts
+++ b/arch/arm/dts/zynq-zc702.dts
@@ -17,6 +17,7 @@
 		spi0 = &qspi;
 		mmc0 = &sdhci0;
 		usb0 = &usb0;
+		nvmem0 = &eeprom;
 	};
 
 	memory@0 {
@@ -142,7 +143,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <2>;
-			eeprom@54 {
+			eeprom: eeprom@54 {
 				compatible = "atmel,24c08";
 				reg = <0x54>;
 			};
diff --git a/arch/arm/dts/zynq-zc706.dts b/arch/arm/dts/zynq-zc706.dts
index cb919e4..f0ad68d 100644
--- a/arch/arm/dts/zynq-zc706.dts
+++ b/arch/arm/dts/zynq-zc706.dts
@@ -16,6 +16,7 @@
 		serial0 = &uart1;
 		spi0 = &qspi;
 		mmc0 = &sdhci0;
+		nvmem0 = &eeprom;
 	};
 
 	memory@0 {
@@ -101,7 +102,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <2>;
-			eeprom@54 {
+			eeprom: eeprom@54 {
 				compatible = "atmel,24c08";
 				reg = <0x54>;
 			};