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/sh7763rdp.h b/include/configs/sh7763rdp.h
index 4723634..1306702 100644
--- a/include/configs/sh7763rdp.h
+++ b/include/configs/sh7763rdp.h
@@ -89,7 +89,7 @@
 #define CFG_BOOTMAPSZ		(8 * 1024 * 1024)
 
 #define CFG_FLASH_CFI
-#define CFG_FLASH_CFI_DRIVER
+#define CONFIG_FLASH_CFI_DRIVER
 #undef  CFG_FLASH_QUIET_TEST
 #define CFG_FLASH_EMPTY_INFO	/* print 'E' for empty sector on flinfo */
 /* Timeout for Flash erase operations (in ms) */