arm: zynq: Fix eeprom dt nodes

- Use eeprom for node name
- Use atmel compatible string instead of at.
- Add missing labels

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/zynq-zc770-xm013.dts b/arch/arm/dts/zynq-zc770-xm013.dts
index 88a7ef0..efd0833 100644
--- a/arch/arm/dts/zynq-zc770-xm013.dts
+++ b/arch/arm/dts/zynq-zc770-xm013.dts
@@ -67,7 +67,7 @@
 	status = "okay";
 	num-cs = <4>;
 	is-decoded-cs = <0>;
-	eeprom: at25@0 {
+	eeprom: eeprom@0 {
 		at25,byte-len = <8192>;
 		at25,addr-mode = <2>;
 		at25,page-size = <32>;