ARM: dts: uniphier: Add one more generic compatible string for I2C EEPROM

Commit 73f9de0c ("ARM: dts: uniphier: Add generic compatible string
for I2C EEPROM") did not touch this node.

Add the compatible string prefixed "atmel," so that this matches to the
OF table.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/boot/dts/uniphier-ref-daughter.dtsi

@@ -7,7 +7,7 @@
 
 &i2c0 {
 	eeprom@50 {
-		compatible = "microchip,24lc128";
+		compatible = "microchip,24lc128", "atmel,24c128";
 		reg = <0x50>;
 		pagesize = <64>;
 	};