pci: print PCI info in case of deferred init.

This is normally done just after init, but in the case of deferred init,
there will be nothing to print at that point.

Currently, there is no way to access that info after the system has
booted. listdev should be extended, or the info should be published in
PCI device nodes to view in the Devices app.

Change-Id: Id89377ccf8bb967abae96194e503fffc06477acf
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5758
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

src/add-ons/kernel/bus_managers/pci/pci.cpp

@@ -524,6 +524,8 @@ pci_init_deferred(void)
 		return B_ERROR;
 	}
 
+	pci_print_info();
+
 	sInitDone = true;
 	return B_OK;
 }