xilinx: Convert xlnx,eeprom property to nvmem alias

Convert all boards to use nvmem alias instead of xlnx,eeprom. The change is
done based on discussion in the link below.

Link: https://lore.kernel.org/r/CAL_JsqLMDqpkyg-Q7mUfw-XH67-v068Q6e9wTq2UOoN=0-_coQ@mail.gmail.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/avnet-ultrazedev-cc-v1.0-ultrazedev-som-v1.0.dts b/arch/arm/dts/avnet-ultrazedev-cc-v1.0-ultrazedev-som-v1.0.dts
index 85ab9e9..6d1448e 100644
--- a/arch/arm/dts/avnet-ultrazedev-cc-v1.0-ultrazedev-som-v1.0.dts
+++ b/arch/arm/dts/avnet-ultrazedev-cc-v1.0-ultrazedev-som-v1.0.dts
@@ -15,10 +15,10 @@
 		     "xlnx,zynqmp";
 	chosen {
 		stdout-path = "serial0:115200n8";
-		xlnx,eeprom = &eeprom;
 	};
 	aliases {
 		ethernet0 = &gem3;
+		nvmem0 = &eeprom;
 		serial0 = &uart0;
 	};
 };