rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/atmel/at91rm9200dk/flash.c b/board/atmel/at91rm9200dk/flash.c
index 0513d61..ef8d9a8 100644
--- a/board/atmel/at91rm9200dk/flash.c
+++ b/board/atmel/at91rm9200dk/flash.c
@@ -221,8 +221,8 @@
 
 	/* Protect environment variables */
 	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]);
 
 	/* Protect U-Boot gzipped image */
 	flash_protect (FLAG_PROTECT_SET,