EfikaMX: Enable EXT2 booting

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

include/configs/efikamx.h

@@ -49,6 +49,7 @@
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_FAT
+#define CONFIG_CMD_EXT2
 #define CONFIG_CMD_IDE
 #undef CONFIG_CMD_IMLS