rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/v38b.h b/include/configs/v38b.h
index e0bd8c7..0f8d5a9 100644
--- a/include/configs/v38b.h
+++ b/include/configs/v38b.h
@@ -214,9 +214,9 @@
  * Environment settings
  */
 #define CONFIG_ENV_IS_IN_FLASH	1
-#define CFG_ENV_ADDR		(CFG_FLASH_BASE + 0x00040000)
-#define CFG_ENV_SIZE		0x10000
-#define CFG_ENV_SECT_SIZE	0x10000
+#define CONFIG_ENV_ADDR		(CFG_FLASH_BASE + 0x00040000)
+#define CONFIG_ENV_SIZE		0x10000
+#define CONFIG_ENV_SECT_SIZE	0x10000
 #define CONFIG_ENV_OVERWRITE	1
 
 /*