powerpc/mpc85xx: socrates: add support for i2c eeprom at 0x51

add support for i2c eeprom on address 0x51.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/powerpc/dts/socrates-u-boot.dtsi b/arch/powerpc/dts/socrates-u-boot.dtsi
index 67c12f6..88df031 100644
--- a/arch/powerpc/dts/socrates-u-boot.dtsi
+++ b/arch/powerpc/dts/socrates-u-boot.dtsi
@@ -6,6 +6,10 @@
 #include <config.h>
 
 / {
+	aliases {
+		eeprom0 = &i2c_eeprom0;
+	};
+
 	chosen {
 		stdout-path = &serial0;
 	};
@@ -13,6 +17,12 @@
 	soc8544@e0000000 {
 		i2c@3000 {
 			u-boot,dm-pre-reloc;
+
+			i2c_eeprom0: eeprom@51{
+				compatible = "atmel,24c64";
+				reg = <0x51>;
+				pagesize = <32>;
+			};
 		};
 	};
 };