vmm: Add virtio-pci device to B/D/F hash table

This table currently contains only all the VFIO devices and it should
really contain all the PCI devices.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

vmm/src/device_manager.rs

@@ -1695,7 +1695,10 @@ impl DeviceManager {
 
         pci.add_device(pci_device_bdf, virtio_pci_device.clone())
             .map_err(DeviceManagerError::AddPciDevice)?;
-
+        self.pci_devices.insert(
+            pci_device_bdf,
+            Arc::clone(&virtio_pci_device) as Arc<dyn Any + Send + Sync>,
+        );
         self.bus_devices
             .push(Arc::clone(&virtio_pci_device) as Arc<Mutex<dyn BusDevice>>);