arndale: dts: add missing i2c aliases

Without this alias setting, the seq numbers
of the i2c devices are wrong.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/dts/exynos5250-arndale.dts

@@ -15,6 +15,14 @@
 	compatible = "samsung,arndale", "samsung,exynos5250";
 
 	aliases {
+		i2c0 = "/i2c@12c60000";
+		i2c1 = "/i2c@12c70000";
+		i2c2 = "/i2c@12c80000";
+		i2c3 = "/i2c@12c90000";
+		i2c4 = "/i2c@12ca0000";
+		i2c5 = "/i2c@12cb0000";
+		i2c6 = "/i2c@12cc0000";
+		i2c7 = "/i2c@12cd0000";
 		serial0 = "/serial@12C20000";
 		console = "/serial@12C20000";
 	};