exynos: config: Move common options to the common headers and tidy up

Many options are duplicated on the exynos5 boards. Move these to the common
files. Also some options are not used so can be removed.

Tidy this up to make the files easier to maintain.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
diff --git a/include/configs/exynos5-dt-common.h b/include/configs/exynos5-dt-common.h
index 098734b..29ef84b 100644
--- a/include/configs/exynos5-dt-common.h
+++ b/include/configs/exynos5-dt-common.h
@@ -16,7 +16,21 @@
 		"stdout=serial,lcd\0" \
 		"stderr=serial,lcd\0"
 
-#include "exynos5-common.h"
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_SPI_BASE	0x12D30000
+#define FLASH_SIZE		(4 << 20)
+#define CONFIG_ENV_OFFSET	(FLASH_SIZE - CONFIG_ENV_SECT_SIZE)
+#define CONFIG_SPI_BOOTING
+
+#define CONFIG_BOARD_COMMON
+
+/* Display */
+#define CONFIG_LCD
+#ifdef CONFIG_LCD
+#define CONFIG_EXYNOS_FB
+#define CONFIG_EXYNOS_DP
+#define LCD_BPP			LCD_COLOR16
+#endif
 
 /* Enable keyboard */
 #define CONFIG_KEYBOARD