Bluetooth: Return NOTIFY_DONE for hci_suspend_notifier

The original return is NOTIFY_STOP, but notifier_call_chain would stop
the future call for register_pm_notifier even registered on other Kernel
modules with the same priority which value is zero.
Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_core.c

@@ -3515,7 +3515,7 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action,
 		bt_dev_err(hdev, "Suspend notifier action (%lu) failed: %d",
 			   action, ret);
 
-	return NOTIFY_STOP;
+	return NOTIFY_DONE;
 }
 
 /* Alloc HCI device */