rename CFG_ENV_IS_IN_FLASH in CONFIG_ENV_IS_IN_FLASH

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/ep7312.h b/include/configs/ep7312.h
index 5433082..367e667 100644
--- a/include/configs/ep7312.h
+++ b/include/configs/ep7312.h
@@ -149,7 +149,7 @@
 #define CFG_FLASH_ERASE_TOUT	(2*CFG_HZ) /* Timeout for Flash Erase */
 #define CFG_FLASH_WRITE_TOUT	(2*CFG_HZ) /* Timeout for Flash Write */
 
-#define	CFG_ENV_IS_IN_FLASH	1
+#define	CONFIG_ENV_IS_IN_FLASH	1
 #define CFG_ENV_ADDR		(PHYS_FLASH_1 + 0x20000)	/* Addr of Environment Sector	*/
 #define CFG_ENV_SIZE		0x20000	/* Total Size of Environment Sector	*/