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

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index fcf6f2c..f5dc632 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -1146,7 +1146,6 @@
 	{ "network", "IBM,l-lan"},
 	{ "", "" }
 };
-
 MODULE_DEVICE_TABLE(vio, ibmveth_device_table);
 
 static struct vio_driver ibmveth_driver = {
@@ -1155,6 +1154,7 @@
 	.remove		= ibmveth_remove,
 	.driver		= {
 		.name	= ibmveth_driver_name,
+		.owner	= THIS_MODULE,
 	}
 };