rename CFG_ENV macros to CONFIG_ENV

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/gr_xc3s_1500.h b/include/configs/gr_xc3s_1500.h
index a6e34d0..316b003 100644
--- a/include/configs/gr_xc3s_1500.h
+++ b/include/configs/gr_xc3s_1500.h
@@ -184,10 +184,10 @@
  */
 /*#define CONFIG_ENV_IS_NOWHERE 1*/
 #define CONFIG_ENV_IS_IN_FLASH	1
-/* CFG_ENV_ADDR need to be at sector boundary */
-#define CFG_ENV_SIZE		0x8000
-#define CFG_ENV_SECT_SIZE	0x20000
-#define CFG_ENV_ADDR		(CFG_FLASH_BASE+CFG_FLASH_SIZE-CFG_ENV_SECT_SIZE)
+/* CONFIG_ENV_ADDR need to be at sector boundary */
+#define CONFIG_ENV_SIZE		0x8000
+#define CONFIG_ENV_SECT_SIZE	0x20000
+#define CONFIG_ENV_ADDR		(CFG_FLASH_BASE+CFG_FLASH_SIZE-CONFIG_ENV_SECT_SIZE)
 #define CONFIG_ENV_OVERWRITE	1
 
 /*