arm: rmobile: koelsch: Add support ext4/fat write command

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
diff --git a/include/configs/koelsch.h b/include/configs/koelsch.h
index 41e162c..d7a0c2d 100644
--- a/include/configs/koelsch.h
+++ b/include/configs/koelsch.h
@@ -33,9 +33,12 @@
 #define CONFIG_CMD_BOOTZ
 #define CONFIG_CMD_USB
 #define CONFIG_CMD_FAT
-
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_SPI
+
+#define CONFIG_FAT_WRITE
+#define CONFIG_EXT4_WRITE
+
 #define CONFIG_SYS_TEXT_BASE	0xE6304000
 #define CONFIG_SYS_THUMB_BUILD