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/ixdp425.h b/include/configs/ixdp425.h
index 6b73abe..6559429 100644
--- a/include/configs/ixdp425.h
+++ b/include/configs/ixdp425.h
@@ -182,7 +182,7 @@
 
 #define CFG_FLASH_CFI				/* The flash is CFI compatible	*/
 #define CONFIG_FLASH_CFI_DRIVER			/* Use common CFI driver	*/
-#define	CFG_ENV_IS_IN_FLASH	1
+#define	CONFIG_ENV_IS_IN_FLASH	1
 
 #define CFG_FLASH_BANKS_LIST	{ PHYS_FLASH_1 }