pci: Use bool return type for some virPCIDeviceGet*() functions

The affected functions are:

  virPCIDeviceGetManaged()
  virPCIDeviceGetUnbindFromStub()
  virPCIDeviceGetRemoveSlot()
  virPCIDeviceGetReprobe()

Change their return type from unsigned int to bool: the corresponding
members in struct _virPCIDevice are defined as bool, and even the
corresponding virPCIDeviceSet*() functions take a bool value as input
so there's no point in these functions having unsigned int as return
type.
Suggested-by: NJohn Ferlan <jferlan@redhat.com>

src/util/virpci.c

@@ -1707,7 +1707,7 @@ void virPCIDeviceSetManaged(virPCIDevicePtr dev, bool managed)
     dev->managed = managed;
 }
 
-unsigned int
+bool
 virPCIDeviceGetManaged(virPCIDevicePtr dev)
 {
     return dev->managed;
@@ -1725,7 +1725,7 @@ virPCIDeviceGetStubDriver(virPCIDevicePtr dev)
     return dev->stubDriver;
 }
 
-unsigned int
+bool
 virPCIDeviceGetUnbindFromStub(virPCIDevicePtr dev)
 {
     return dev->unbind_from_stub;
@@ -1737,7 +1737,7 @@ virPCIDeviceSetUnbindFromStub(virPCIDevicePtr dev, bool unbind)
     dev->unbind_from_stub = unbind;
 }
 
-unsigned int
+bool
 virPCIDeviceGetRemoveSlot(virPCIDevicePtr dev)
 {
     return dev->remove_slot;
@@ -1749,7 +1749,7 @@ virPCIDeviceSetRemoveSlot(virPCIDevicePtr dev, bool remove_slot)
     dev->remove_slot = remove_slot;
 }
 
-unsigned int
+bool
 virPCIDeviceGetReprobe(virPCIDevicePtr dev)
 {
     return dev->reprobe;

src/util/virpci.h

@@ -99,7 +99,7 @@ int virPCIDeviceReset(virPCIDevicePtr dev,
 
 void virPCIDeviceSetManaged(virPCIDevice *dev,
                             bool managed);
-unsigned int virPCIDeviceGetManaged(virPCIDevice *dev);
+bool virPCIDeviceGetManaged(virPCIDevice *dev);
 void virPCIDeviceSetStubDriver(virPCIDevicePtr dev,
                                virPCIStubDriver driver);
 virPCIStubDriver virPCIDeviceGetStubDriver(virPCIDevicePtr dev);
@@ -110,13 +110,13 @@ int virPCIDeviceSetUsedBy(virPCIDevice *dev,
 void virPCIDeviceGetUsedBy(virPCIDevice *dev,
                            const char **drv_name,
                            const char **dom_name);
-unsigned int virPCIDeviceGetUnbindFromStub(virPCIDevicePtr dev);
+bool virPCIDeviceGetUnbindFromStub(virPCIDevicePtr dev);
 void  virPCIDeviceSetUnbindFromStub(virPCIDevice *dev,
                                     bool unbind);
-unsigned int virPCIDeviceGetRemoveSlot(virPCIDevicePtr dev);
+bool virPCIDeviceGetRemoveSlot(virPCIDevicePtr dev);
 void virPCIDeviceSetRemoveSlot(virPCIDevice *dev,
                                bool remove_slot);
-unsigned int virPCIDeviceGetReprobe(virPCIDevicePtr dev);
+bool virPCIDeviceGetReprobe(virPCIDevicePtr dev);
 void virPCIDeviceSetReprobe(virPCIDevice *dev,
                             bool reprobe);