PCI: fix bridge configuration

PCI bridges' qdev info structures must indicate bridge header type,
otherwise critical bridge registers (esp. PCI_PRIMARY_BUS,
PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS) will not be writable.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

hw/apb_pci.c

@@ -365,6 +365,7 @@ static PCIDeviceInfo pbm_pci_host_info = {
     .qdev.name = "pbm",
     .qdev.size = sizeof(PCIDevice),
     .init      = pbm_pci_host_init,
+    .header_type  = PCI_HEADER_TYPE_BRIDGE,
 };
 
 static void pbm_register_devices(void)

hw/grackle_pci.c

@@ -181,6 +181,7 @@ static PCIDeviceInfo dec_21154_pci_host_info = {
     .qdev.name = "dec-21154",
     .qdev.size = sizeof(PCIDevice),
     .init      = dec_21154_pci_host_init,
+    .header_type  = PCI_HEADER_TYPE_BRIDGE,
 };
 
 static void grackle_register_devices(void)

hw/pci.c

@@ -1874,6 +1874,7 @@ static PCIDeviceInfo bridge_info = {
     .init         = pci_bridge_initfn,
     .exit         = pci_bridge_exitfn,
     .config_write = pci_bridge_write_config,
+    .header_type  = PCI_HEADER_TYPE_BRIDGE,
     .qdev.props   = (Property[]) {
         DEFINE_PROP_HEX32("vendorid", PCIBridge, vid, 0),
         DEFINE_PROP_HEX32("deviceid", PCIBridge, did, 0),

hw/unin_pci.c

@@ -269,6 +269,7 @@ static PCIDeviceInfo dec_21154_pci_host_info = {
     .qdev.name = "dec-21154",
     .qdev.size = sizeof(PCIDevice),
     .init      = dec_21154_pci_host_init,
+    .header_type  = PCI_HEADER_TYPE_BRIDGE,
 };
 
 static PCIDeviceInfo unin_agp_pci_host_info = {