mvebu: clearfog: Add i2c device aliases

Without these the i2c command in the u-boot shell is
unable to find the devices.

Signed-off-by: Jon Nettleton <jon@solid-run.com>

Author: jnettlet

arch/arm/dts/armada-388-clearfog.dts

@@ -61,6 +61,8 @@
 		ethernet1 = &eth0;
 		ethernet2 = &eth1;
 		ethernet3 = &eth2;
+		i2c1 = &i2c0;
+		i2c2 = &i2c1;
 		spi1 = &spi1;
 	};