ARM: dts: am437x: cm-t43: add support for baseboard eeprom

SB-SOM baseboard comes with an on-board EEPROM. On SBC-T43 this EEPROM
resides on the i2c1 bus. Add it to the device tree.
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am437x-sbc-t43.dts

@@ -61,6 +61,12 @@ pca9555: pca9555@20 {
 		gpio-controller;
 		#gpio-cells = <2>;
 	};
+
+	eeprom_base: at24@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
 };
 
 &i2c2 {