exynos: Move common smdk5420 things to common file

A few things are common but are not in the common file. Fix this and
rename the file to fit with the other exynos*-common files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

include/configs/exynos5420-common.h

@@ -9,7 +9,9 @@
 #ifndef __CONFIG_EXYNOS5420_H
 #define __CONFIG_EXYNOS5420_H
 
-#define CONFIG_EXYNOS5420		/* which is in a Exynos5 Family */
+#define CONFIG_EXYNOS5420
+
+#include <configs/exynos5-common.h>
 
 #define MACH_TYPE_SMDK5420	8002
 #define CONFIG_MACH_TYPE	MACH_TYPE_SMDK5420
@@ -31,10 +33,6 @@
 
 #define CONFIG_MAX_I2C_NUM	11
 
-/* Enable FIT support and comparison */
-#define CONFIG_FIT
-#define CONFIG_FIT_BEST_MATCH
-
 #define CONFIG_BOARD_REV_GPIO_COUNT	2
 
 #define CONFIG_BOOTCOMMAND	"mmc read 20007000 451 2000; bootm 20007000"

include/configs/peach-pit.h

@@ -9,9 +9,7 @@
 #ifndef __CONFIG_PEACH_PIT_H
 #define __CONFIG_PEACH_PIT_H
 
-#include <configs/exynos5-common.h>
+#include <configs/exynos5420-common.h>
-
-#include <configs/exynos5420.h>
 
 
 /* select serial console configuration */

include/configs/smdk5420.h

@@ -9,9 +9,7 @@
 #ifndef __CONFIG_SMDK5420_H
 #define __CONFIG_SMDK5420_H
 
-#include <configs/exynos5-common.h>
+#include <configs/exynos5420-common.h>
-
-#include <configs/exynos5420.h>
 
 #define CONFIG_SMDK5420			/* which is in a SMDK5420 */