rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

board/zylonite/flash.c

diff --git a/board/zylonite/flash.c b/board/zylonite/flash.c
index 883c1ba..80b520b 100644
--- a/board/zylonite/flash.c
+++ b/board/zylonite/flash.c
@@ -91,8 +91,8 @@
 			&flash_info[0] );
 
 	flash_protect ( FLAG_PROTECT_SET,
-			CFG_ENV_ADDR,
-			CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] );
+			CONFIG_ENV_ADDR,
+			CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0] );
 
 	return size;
 #endif