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/imx31_litekit.h b/include/configs/imx31_litekit.h
index c476333..1660b05 100644
--- a/include/configs/imx31_litekit.h
+++ b/include/configs/imx31_litekit.h
@@ -150,7 +150,7 @@
 #define CFG_MONITOR_BASE	CFG_FLASH_BASE /* Monitor at beginning of flash */
 
 #define CFG_ENV_ADDR		(CFG_FLASH_BASE + 0x001f0000)
-#define	CFG_ENV_IS_IN_FLASH	1
+#define	CONFIG_ENV_IS_IN_FLASH	1
 #define CFG_ENV_SECT_SIZE	(64 * 1024)
 #define CFG_ENV_SIZE		(64 * 1024)