Bluetooth: hci_sync: Fix not always pausing advertising when necessary

hci_pause_advertising_sync shall always pause advertising until
hci_resume_advertising_sync but instance 0x00 doesn't count
in adv_instance_cnt so it was causing it to be skipped.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_sync.c

@@ -1701,10 +1701,8 @@ static int hci_pause_advertising_sync(struct hci_dev *hdev)
 	int err;
 	int old_state;
 
-	/* If there are no instances or advertising has already been paused
-	 * there is nothing to do.
-	 */
-	if (!hdev->adv_instance_cnt || hdev->advertising_paused)
+	/* If already been paused there is nothing to do. */
+	if (hdev->advertising_paused)
 		return 0;
 
 	bt_dev_dbg(hdev, "Pausing directed advertising");