qemu-kvm: Fix INTx assigned device can't work bug

Commit 6b5bbd04 "qdev-ify device assignment" forgot to put assigned devices to "devs" list. So when IRQ routing changed in pci configure space, calling to assigned_dev_update_irqs() won't update device guest IRQ, then assigned INTx devices fail to work.

(OK, I am now aware of the fact that people don't use INTx these days...)

---
 hw/device-assignment.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

index 516cf14..64f3dc2 100644
@@ -1180,6 +1180,7 @@ static int assigned_initfn(struct PCIDevice *pci_dev)
             goto assigned_out;
 
     assigned_dev_load_option_rom(dev);
+    QLIST_INSERT_HEAD(&devs, dev, next);
     return 0;
 
 assigned_out:

1.5.4.5

Applied, thanks.