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/modnet50.h b/include/configs/modnet50.h
index 84540f5..7cfd4fa 100644
--- a/include/configs/modnet50.h
+++ b/include/configs/modnet50.h
@@ -170,7 +170,7 @@
 #define CFG_FLASH_WRITE_TOUT	(2*CFG_HZ) /* Timeout for Flash Write */
 
 /* environment settings */
-#define	CFG_ENV_IS_IN_FLASH
+#define	CONFIG_ENV_IS_IN_FLASH
 #undef CONFIG_ENV_IS_NOWHERE
 
 #define CFG_ENV_ADDR		0x1001C000 /* environment start address */