xpedite5370: Enable NAND command support

Use the MPC8572's eLBC to access 1 GB (or greater) onboard NAND flash
via the 'nand' command.

Previously, the XPedite5370's NAND chip selects were properly
configured, but NAND support was not enabled.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/configs/XPEDITE5370.h

@@ -124,6 +124,12 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
  */
 #define CONFIG_SYS_NAND_BASE		0xef800000
 #define CONFIG_SYS_NAND_BASE2		0xef840000 /* Unused at this time */
+#define CONFIG_SYS_NAND_BASE_LIST	{CONFIG_SYS_NAND_BASE, \
+					 CONFIG_SYS_NAND_BASE2}
+#define CONFIG_SYS_MAX_NAND_DEVICE	2
+#define CONFIG_MTD_NAND_VERIFY_WRITE
+#define CONFIG_SYS_NAND_QUIET_TEST	/* 2nd NAND flash not always populated */
+#define CONFIG_NAND_FSL_ELBC
 
 /*
  * NOR flash configuration
@@ -375,16 +381,17 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy);
 #define CONFIG_CMD_DTT
 #define CONFIG_CMD_EEPROM
 #define CONFIG_CMD_ELF
-#define CONFIG_CMD_SAVEENV
 #define CONFIG_CMD_FLASH
 #define CONFIG_CMD_I2C
 #define CONFIG_CMD_JFFS2
 #define CONFIG_CMD_MII
+#define CONFIG_CMD_NAND
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_PCA953X
 #define CONFIG_CMD_PCA953X_INFO
 #define CONFIG_CMD_PCI
 #define CONFIG_CMD_PING
+#define CONFIG_CMD_SAVEENV
 #define CONFIG_CMD_SNTP
 
 /*