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/KUP4X.h b/include/configs/KUP4X.h
index be0c7af..29c3e2d 100644
--- a/include/configs/KUP4X.h
+++ b/include/configs/KUP4X.h
@@ -266,7 +266,7 @@
 #define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)	*/
 #define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)	*/
 
-#define CFG_ENV_IS_IN_FLASH	1
+#define CONFIG_ENV_IS_IN_FLASH	1
 #define CFG_ENV_OFFSET		0x40000 /*   Offset   of Environment Sector	*/
 #define CFG_ENV_SIZE		0x1000	/* Total Size of Environment Sector	*/
 #define CFG_ENV_SECT_SIZE	0x10000