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/M54451EVB.h b/include/configs/M54451EVB.h
index 06e2244..d0a66ea 100644
--- a/include/configs/M54451EVB.h
+++ b/include/configs/M54451EVB.h
@@ -272,7 +272,7 @@
 #	define CFG_ENV_SIZE		0x2000
 #	define CFG_ENV_SECT_SIZE	0x10000
 #else
-#	define CFG_ENV_IS_IN_FLASH	1
+#	define CONFIG_ENV_IS_IN_FLASH	1
 #	define CFG_ENV_ADDR		(CFG_FLASH_BASE + 0x4000)
 #	define CFG_ENV_SECT_SIZE	0x2000
 #endif