rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/DU440.h b/include/configs/DU440.h
index 37a7e3a..9f8c423 100644
--- a/include/configs/DU440.h
+++ b/include/configs/DU440.h
@@ -137,19 +137,19 @@
 #define CFG_FLASH_QUIET_TEST	1	/* don't warn upon unknown flash      */
 
 #ifdef CONFIG_ENV_IS_IN_FLASH
-#define CFG_ENV_SECT_SIZE	0x20000 /* size of one complete sector        */
-#define CFG_ENV_ADDR		((-CFG_MONITOR_LEN)-CFG_ENV_SECT_SIZE)
-#define	CFG_ENV_SIZE		0x2000	/* Total Size of Environment Sector   */
+#define CONFIG_ENV_SECT_SIZE	0x20000 /* size of one complete sector        */
+#define CONFIG_ENV_ADDR		((-CFG_MONITOR_LEN)-CONFIG_ENV_SECT_SIZE)
+#define	CONFIG_ENV_SIZE		0x2000	/* Total Size of Environment Sector   */
 
 /* Address and size of Redundant Environment Sector	*/
-#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
-#define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
+#define CONFIG_ENV_ADDR_REDUND	(CONFIG_ENV_ADDR-CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_SIZE_REDUND	(CONFIG_ENV_SIZE)
 #endif
 
 #ifdef CONFIG_ENV_IS_IN_EEPROM
-#define CFG_ENV_OFFSET		0	/* environment starts at */
+#define CONFIG_ENV_OFFSET		0	/* environment starts at */
 					/* the beginning of the EEPROM */
-#define CFG_ENV_SIZE		0x1000 /* 4096 bytes may be used for env vars */
+#define CONFIG_ENV_SIZE		0x1000 /* 4096 bytes may be used for env vars */
 #endif
 
 /*