ARM: dts: sun5i: olinuxino micro: Fix AT24 node name

The node name in a device tree is supposed to be the class of the device,
not its model (even if it's a pretty generic one).

This was reported by the DT validation tools.
Signed-off-by: Maxime Ripard <mripard@kernel.org>

arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts

@@ -130,7 +130,7 @@ axp152: pmic@30 {
 &i2c1 {
 	status = "okay";
 
-	at24@50 {
+	eeprom@50 {
 		compatible = "atmel,24c16";
 		pagesize = <16>;
 		reg = <0x50>;