pci: Move PCI and PCIE type defines

Move these so that we can reference them from a more common header
instead of including pci_bus.h everywhere.
Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/pci/pci.h

@@ -339,6 +339,11 @@ typedef enum {
 
 typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
                               PCIHotplugState state);
+
+#define TYPE_PCI_BUS "PCI"
+#define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
+#define TYPE_PCIE_BUS "PCIE"
+
 void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
                          const char *name,
                          MemoryRegion *address_space_mem,

hw/pci/pci_bus.h

@@ -8,10 +8,6 @@
  * use accessor functions in pci.h, pci_bridge.h
  */
 
-#define TYPE_PCI_BUS "PCI"
-#define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
-#define TYPE_PCIE_BUS "PCIE"
-
 struct PCIBus {
     BusState qbus;
     PCIDMAContextFunc dma_context_fn;