wandboard: Use env storage info for mmcdev/mmcpart

This makes environment and mmcdev/mmcpart in sync with SYS_MMC_ENV_DEV
and SYS_MMC_ENV_PART settings.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

include/configs/wandboard.h

@@ -97,8 +97,8 @@
 	"fdt_addr=0x11000000\0" \
 	"boot_fdt=try\0" \
 	"ip_dyn=yes\0" \
-	"mmcdev=0\0" \
-	"mmcpart=2\0" \
+	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
+	"mmcpart=" __stringify(CONFIG_SYS_MMC_ENV_PART) "\0" \
 	"mmcroot=/dev/mmcblk0p3 rootwait rw\0" \
 	"mmcargs=setenv bootargs console=${console},${baudrate} " \
 		"root=${mmcroot}\0" \
@@ -198,6 +198,7 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_ENV_OFFSET		(6 * 64 * 1024)
 #define CONFIG_SYS_MMC_ENV_DEV		0
+#define CONFIG_SYS_MMC_ENV_PART		2
 
 #define CONFIG_OF_LIBFDT
 #define CONFIG_CMD_BOOTZ