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/hammerhead.h b/include/configs/hammerhead.h
index c44d62e..68bd4c8 100644
--- a/include/configs/hammerhead.h
+++ b/include/configs/hammerhead.h
@@ -143,7 +143,7 @@
 
 #define CFG_SDRAM_BASE			0x10000000
 
-#define CFG_ENV_IS_IN_FLASH		1
+#define CONFIG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
 #define CFG_ENV_ADDR			(CFG_FLASH_BASE + CFG_FLASH_SIZE - CFG_ENV_SIZE)