rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/walnut.h b/include/configs/walnut.h
index fc267d1..9676cd6 100644
--- a/include/configs/walnut.h
+++ b/include/configs/walnut.h
@@ -161,13 +161,13 @@
 #define CFG_FLASH_WORD_SIZE	unsigned char
 
 #ifdef CONFIG_ENV_IS_IN_FLASH
-#define CFG_ENV_SECT_SIZE	0x10000		/* size of one complete sector	*/
-#define CFG_ENV_ADDR		(CFG_MONITOR_BASE-CFG_ENV_SECT_SIZE)
-#define CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
+#define CONFIG_ENV_SECT_SIZE	0x10000		/* size of one complete sector	*/
+#define CONFIG_ENV_ADDR		(CFG_MONITOR_BASE-CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
 
 /* Address and size of Redundant Environment Sector	*/
-#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
-#define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
+#define CONFIG_ENV_ADDR_REDUND	(CONFIG_ENV_ADDR-CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_SIZE_REDUND	(CONFIG_ENV_SIZE)
 #endif /* CONFIG_ENV_IS_IN_FLASH */
 
 /*-----------------------------------------------------------------------
@@ -177,9 +177,9 @@
 #define CFG_NVRAM_SIZE		0x1ff8		/* NVRAM size	*/
 
 #ifdef CONFIG_ENV_IS_IN_NVRAM
-#define CFG_ENV_SIZE		0x1000		/* Size of Environment vars	*/
-#define CFG_ENV_ADDR		\
-	(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE)	/* Env	*/
+#define CONFIG_ENV_SIZE		0x1000		/* Size of Environment vars	*/
+#define CONFIG_ENV_ADDR		\
+	(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CONFIG_ENV_SIZE)	/* Env	*/
 #endif
 
 /*-----------------------------------------------------------------------