config: Move arndale to use common exynos5250 file

Most of the arndale features are common with other exynos5250 boards. To
permit easier addition of driver model support, use the common file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/include/configs/smdk5420.h b/include/configs/smdk5420.h
index 894ed11..fd2d482 100644
--- a/include/configs/smdk5420.h
+++ b/include/configs/smdk5420.h
@@ -11,6 +11,8 @@
 
 #include <configs/exynos5420-common.h>
 
+#define CONFIG_BOARD_COMMON
+
 #define CONFIG_SMDK5420			/* which is in a SMDK5420 */
 
 
@@ -19,5 +21,6 @@
 
 #define CONFIG_SYS_PROMPT	"SMDK5420 # "
 #define CONFIG_IDENT_STRING	" for SMDK5420"
+#define CONFIG_DEFAULT_CONSOLE		"console=ttySAC1,115200n8\0"
 
 #endif	/* __CONFIG_SMDK5420_H */