rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/xm250.h b/include/configs/xm250.h
index d01898f..aac03a1 100644
--- a/include/configs/xm250.h
+++ b/include/configs/xm250.h
@@ -185,9 +185,9 @@
 #define CFG_FLASH_PROTECTION			/* "Real" (hardware) sectors protection */
 
 #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	*/
+#define CONFIG_ENV_ADDR		(PHYS_FLASH_1 + 0x40000)	/* Addr of Environment Sector	*/
+#define CONFIG_ENV_SIZE		0x4000
+#define CONFIG_ENV_SECT_SIZE	0x40000				/* Size of the Environment Sector	*/
 #define CFG_MONITOR_LEN		0x20000				/* 128 KiB */
 
 /******************************************************************************