ARM: rmobile: Fix environment placement on Draak

The environment on Draak is in the eMMC, card 0, place it so.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>

include/configs/draak.h

@@ -20,7 +20,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
-#define CONFIG_SYS_MMC_ENV_DEV		1
+#define CONFIG_SYS_MMC_ENV_DEV		0
 #define CONFIG_SYS_MMC_ENV_PART		2
 
 #define CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS