powerpc: set the driver.owner field for all vio drivers

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index ea72faa..709f809 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -778,14 +778,15 @@
 	{ "viodasd", "" },
 	{ "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, viodasd_device_table);
+
 static struct vio_driver viodasd_driver = {
 	.id_table = viodasd_device_table,
 	.probe = viodasd_probe,
 	.remove = viodasd_remove,
 	.driver = {
 		.name = "viodasd",
+		.owner = THIS_MODULE,
 	}
 };