rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/flagadm/flash.c b/board/flagadm/flash.c
index 3303707..aa8b0f9 100644
--- a/board/flagadm/flash.c
+++ b/board/flagadm/flash.c
@@ -84,8 +84,8 @@
 #ifdef	CONFIG_ENV_IS_IN_FLASH
 	/* ENV protection ON by default */
 	flash_protect(FLAG_PROTECT_SET,
-		      CFG_ENV_OFFSET,
-		      CFG_ENV_OFFSET+CFG_ENV_SIZE-1,
+		      CONFIG_ENV_OFFSET,
+		      CONFIG_ENV_OFFSET+CONFIG_ENV_SIZE-1,
 		      &flash_info[0]);
 #endif
 	return (flash_info[0].size);