Bluetooth: mgmt: multi-adv for trigger_le_scan()

This patch ensures that instance advertising is correctly canceled
before starting a le scan.
Signed-off-by: NFlorian Grandel <fgrandel@gmail.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

net/bluetooth/mgmt.c

@@ -4215,6 +4215,7 @@ static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status)
 			return false;
 		}
 
+		cancel_adv_timeout(hdev);
 		disable_advertising(req);
 	}