rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/P3G4.h b/include/configs/P3G4.h
index 232044b..8150091 100644
--- a/include/configs/P3G4.h
+++ b/include/configs/P3G4.h
@@ -398,9 +398,9 @@
 #define CFG_FLASH_CFI		1
 
 #define	CONFIG_ENV_IS_IN_FLASH	1
-#define	CFG_ENV_SIZE		0x1000	/* Total Size of Environment Sector */
-#define CFG_ENV_SECT_SIZE	0x20000
-#define CFG_ENV_ADDR		0xFFFE0000
+#define	CONFIG_ENV_SIZE		0x1000	/* Total Size of Environment Sector */
+#define CONFIG_ENV_SECT_SIZE	0x20000
+#define CONFIG_ENV_ADDR		0xFFFE0000
 
 /*-----------------------------------------------------------------------
  * Cache Configuration