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/sbc8260.h b/include/configs/sbc8260.h
index 6068c23..3a031de 100644
--- a/include/configs/sbc8260.h
+++ b/include/configs/sbc8260.h
@@ -603,7 +603,7 @@
 #define CFG_FLASH_WRITE_TOUT	1	/* Timeout for Flash Write (in ms)	*/
 
 #ifndef CFG_RAMBOOT
-#  define CFG_ENV_IS_IN_FLASH	1
+#  define CONFIG_ENV_IS_IN_FLASH	1
 
 #  ifdef CFG_ENV_IN_OWN_SECT
 #    define CFG_ENV_ADDR	(CFG_MONITOR_BASE + 0x40000)