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/xm250.h b/include/configs/xm250.h
index bcd16ec..d01898f 100644
--- a/include/configs/xm250.h
+++ b/include/configs/xm250.h
@@ -184,7 +184,7 @@
 #define CFG_FLASH_UNLOCK_TOUT	(2*CFG_HZ)	/* Timeout for Flash Clear Lock Bits */
 #define CFG_FLASH_PROTECTION			/* "Real" (hardware) sectors protection */
 
-#define CFG_ENV_IS_IN_FLASH	1
+#define CONFIG_ENV_IS_IN_FLASH	1
 #define CFG_ENV_ADDR		(PHYS_FLASH_1 + 0x40000)	/* Addr of Environment Sector	*/
 #define CFG_ENV_SIZE		0x4000
 #define CFG_ENV_SECT_SIZE	0x40000				/* Size of the Environment Sector	*/