yaffs: fix to detect MLC/TLC NAND flash

Signed-off-by: Vladimir Zahradnik <vladimir.zahradnik@gmail.com>

target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c

@@ -259,7 +259,7 @@ struct mtd_info * yaffs_get_mtd_device(dev_t sdev)
 		return NULL;	/* This isn't an mtd device */
 
 	/* Check it's NAND */
-	if (mtd->type != MTD_NANDFLASH) {
+	if (mtd->type != MTD_NANDFLASH && mtd->type != MTD_MLCNANDFLASH) {
 		yaffs_trace(YAFFS_TRACE_ALWAYS,
 			"yaffs: MTD device is not NAND it's type %d",
 			mtd->type);

target/linux/generic/files/fs/yaffs2/yaffs_vfs.c

@@ -2598,7 +2598,7 @@ static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
 	}
 
 	/* Check it's NAND */
-	if (mtd->type != MTD_NANDFLASH) {
+	if (mtd->type != MTD_NANDFLASH && mtd->type != MTD_MLCNANDFLASH) {
 		yaffs_trace(YAFFS_TRACE_ALWAYS,
 			"MTD device is not NAND it's type %d",
 			mtd->type);