drivers/mtd: Move conditional compilation to Makefile

rename CFG_FLASH_CFI_DRIVER to CONFIG_FLASH_CFI_DRIVER

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/FPS860L.h b/include/configs/FPS860L.h
index ec757e2..84b6824 100644
--- a/include/configs/FPS860L.h
+++ b/include/configs/FPS860L.h
@@ -194,7 +194,7 @@
 
 /* use CFI flash driver */
 #define CFG_FLASH_CFI		1	/* Flash is CFI conformant */
-#define CFG_FLASH_CFI_DRIVER	1	/* Use the common driver */
+#define CONFIG_FLASH_CFI_DRIVER	1	/* Use the common driver */
 #define CFG_FLASH_BANKS_LIST	{ CFG_FLASH_BASE, CFG_FLASH_BASE+flash_info[0].size }
 #define CFG_FLASH_EMPTY_INFO
 #define CFG_FLASH_USE_BUFFER_WRITE	1