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/DB64460.h b/include/configs/DB64460.h
index b14cd0d..59a934e 100644
--- a/include/configs/DB64460.h
+++ b/include/configs/DB64460.h
@@ -497,7 +497,7 @@
 #define CFG_FLASH_LOCK_TOUT	500	/* Timeout for Flash Lock (in ms) */
 #define CFG_FLASH_CFI		1
 
-#define CFG_ENV_IS_IN_FLASH	1
+#define CONFIG_ENV_IS_IN_FLASH	1
 #define CFG_ENV_SIZE		0x1000	/* Total Size of Environment Sector */
 #define CFG_ENV_SECT_SIZE	0x10000
 #define CFG_ENV_ADDR	      0xFFF78000 /* Marvell 8-Bit Bootflash last sector */