rename CFG_ENV_IS_IN_EEPROM in CONFIG_ENV_IS_IN_EEPROM

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/DU405.h b/include/configs/DU405.h
index c8bf67f..811b9c3 100644
--- a/include/configs/DU405.h
+++ b/include/configs/DU405.h
@@ -227,7 +227,7 @@
 #define CFG_EEPROM_PAGE_WRITE_DELAY_MS	10   /* and takes up to 10 msec */
 #define CFG_EEPROM_PAGE_WRITE_ENABLE
 
-#define CFG_ENV_IS_IN_EEPROM	1	/* use EEPROM for environment vars */
+#define CONFIG_ENV_IS_IN_EEPROM	1	/* use EEPROM for environment vars */
 #define CFG_ENV_OFFSET		0x000	/* environment starts at the beginning of the EEPROM */
 #define CFG_ENV_SIZE		0x400	/* 1024 bytes may be used for env vars */
 				   /* total size of a CAT24WC08 is 1024 bytes */