rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/evb4510/flash.c b/board/evb4510/flash.c
index aff92f9..bcefafc 100644
--- a/board/evb4510/flash.c
+++ b/board/evb4510/flash.c
@@ -399,7 +399,7 @@
 		       amd160base, amd160base + monitor_flash_len - 1, info);
 
 	flash_protect (FLAG_PROTECT_SET,
-		       CFG_ENV_ADDR, CFG_ENV_ADDR + CFG_ENV_SIZE - 1, info);
+		       CONFIG_ENV_ADDR, CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, info);
 
 #if CFG_MAX_FLASH_BANKS == 2
 	/* Configure AMD Am29LV040B (512KB) */