rename CFG_ENV_IS_IN_FLASH in CONFIG_ENV_IS_IN_FLASH

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/walnut.h b/include/configs/walnut.h
index 4eecf77..fc267d1 100644
--- a/include/configs/walnut.h
+++ b/include/configs/walnut.h
@@ -137,7 +137,7 @@
  *	 supported for backward compatibility.
  */
 #if 1
-#define CFG_ENV_IS_IN_FLASH	1	/* use FLASH for environment vars	*/
+#define CONFIG_ENV_IS_IN_FLASH	1	/* use FLASH for environment vars	*/
 #else
 #define CONFIG_ENV_IS_IN_NVRAM	1	/* use NVRAM for environment vars	*/
 #endif
@@ -160,7 +160,7 @@
 #define CFG_FLASH_ADDR1		0x2aaa
 #define CFG_FLASH_WORD_SIZE	unsigned char
 
-#ifdef CFG_ENV_IS_IN_FLASH
+#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	*/
@@ -168,7 +168,7 @@
 /* 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)
-#endif /* CFG_ENV_IS_IN_FLASH */
+#endif /* CONFIG_ENV_IS_IN_FLASH */
 
 /*-----------------------------------------------------------------------
  * NVRAM organization