Bluetooth: Fix using advertising instance duration as timeout

When using LE Set Extended Advertising Enable command the duration
refers to the lifetime of instance not the length which is actually
controlled by the interval_min and interval_max when setting the
parameters.
Signed-off-by: NLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_request.c

@@ -1690,7 +1690,7 @@ int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance)
 	 * scheduling it.
 	 */
 	if (adv_instance && adv_instance->duration) {
-		u16 duration = adv_instance->duration * MSEC_PER_SEC;
+		u16 duration = adv_instance->timeout * MSEC_PER_SEC;
 
 		/* Time = N * 10 ms */
 		adv_set->duration = cpu_to_le16(duration / 10);