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/smmaco4.h b/include/configs/smmaco4.h
index 3e47eb8..1d202d4 100644
--- a/include/configs/smmaco4.h
+++ b/include/configs/smmaco4.h
@@ -196,7 +196,7 @@
 
 /* use CFI flash driver if no module variant is spezified */
 #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_BOOTCS_START }
 #define CFG_FLASH_EMPTY_INFO
 #define CFG_FLASH_SIZE		0x04000000 /* 64 MByte */