dts: sunxi: add eeprom to A20 OLinuXino micro board

The Olimex A20 OLinuXino Micro features an eeprom that is always on the
board. This patch adds it to the dts.

Signed-off-by: Olliver Schinagl <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>

arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts

···
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c1_pins_a>;
 	status = "okay";
+
+	eeprom: eeprom@50 {
+		compatible = "atmel,24c16";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
 };
 
 &i2c2 {