PCI: cpcihp: Add missing curly braces in cpci_configure_slot()

I don't have this hardware but it looks like we weren't adding bridge
devices as intended. Maybe the bridge is always the last device?

Fixes: 05b125004815 ("PCI: cpcihp: Iterate over all devices in slot, not functions 0-7")
Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Acked-by: Yijing Wang <[e-mail]>
CC: [e-mail] # v3.9+

drivers/pci/hotplug/cpci_hotplug_pci.c

···
 	}
 	parent = slot->dev->bus;
 
-	list_for_each_entry(dev, &parent->devices, bus_list)
+	list_for_each_entry(dev, &parent->devices, bus_list) {
 		if (PCI_SLOT(dev->devfn) != PCI_SLOT(slot->devfn))
 			continue;
 		if (pci_is_bridge(dev))
 			pci_hp_add_bridge(dev);
+	}
 
 
 	pci_assign_unassigned_bridge_resources(parent->self);