arm: ls1021a: Add CONFIG_DOS_PARTITION and CONFIG_CMD_FAT support

This patch will fix the bug that the partitions on the SD card could
not be accessed and add the support for the FAT fs.
Signed-off-by: NAlison Wang <alison.wang@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

include/configs/ls1021aqds.h

@@ -312,6 +312,9 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_FSL_ESDHC
 #define CONFIG_GENERIC_MMC
 
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
 /*
  * USB
  */

include/configs/ls1021atwr.h

@@ -212,6 +212,9 @@
 #define CONFIG_FSL_ESDHC
 #define CONFIG_GENERIC_MMC
 
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
 /*
  * Video
  */