mtd: devices: sst251: show parent device in sysfs

Fix a bug where mtd parent device symlinks aren't shown in sysfs.

While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

drivers/mtd/devices/sst25l.c

@@ -374,9 +374,8 @@ static int sst25l_probe(struct spi_device *spi)
 	data = dev_get_platdata(&spi->dev);
 	if (data && data->name)
 		flash->mtd.name = data->name;
-	else
-		flash->mtd.name = dev_name(&spi->dev);
 
+	flash->mtd.dev.parent   = &spi->dev;
 	flash->mtd.type		= MTD_NORFLASH;
 	flash->mtd.flags	= MTD_CAP_NORFLASH;
 	flash->mtd.erasesize	= flash_info->erase_size;