rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/o2dnt/flash.c b/board/o2dnt/flash.c
index 2aa0489..1cf78c7 100644
--- a/board/o2dnt/flash.c
+++ b/board/o2dnt/flash.c
@@ -106,9 +106,9 @@
 #ifdef	CONFIG_ENV_IS_IN_FLASH
 	/* ENV protection ON by default */
 	flash_protect(FLAG_PROTECT_SET,
-			CFG_ENV_ADDR,
-			CFG_ENV_ADDR+CFG_ENV_SIZE-1,
-			flash_get_info(CFG_ENV_ADDR));
+			CONFIG_ENV_ADDR,
+			CONFIG_ENV_ADDR+CONFIG_ENV_SIZE-1,
+			flash_get_info(CONFIG_ENV_ADDR));
 #endif