vmm, main: make PCI BDF configurable for ConsoleConfig

Add common PCI device configuration to the virtio-console device
configuration. This allows setting the device ID (the name), ID, the
PCI segment, and the PCI device ID (BDF), which were previously not
configurable for the virtio-console device.

This gives management software, such as libvirt, more control over PCI
resource assignment and aligns virtio-console with other devices that
already support this functionality [0].

[0] https://github.com/cloud-hypervisor/cloud-hypervisor/issues/8175

On-behalf-of: Philipp Schuster <philipp.schuster@sap.com>
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>

fuzz/fuzz_targets/http_api.rs

@@ -184,7 +184,7 @@ impl RequestHandler for StubApiRequestHandler {
                         mode: ConsoleOutputMode::Tty,
                         socket: None,
                     },
-                    iommu: false,
+                    pci_common: PciDeviceCommonConfig::default(),
                 },
                 #[cfg(target_arch = "x86_64")]
                 debug_console: DebugConsoleConfig::default(),