ARM: dts: use uart port0 for console on exynos5440-ssdk5440

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5440-ssdk5440.dts

@@ -21,7 +21,7 @@
 	};
 
 	chosen {
-		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x81000000,8M console=ttySAC2,115200 init=/linuxrc";
+		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x81000000,8M console=ttySAC0,115200 init=/linuxrc";
 	};
 
 	spi {