Bluetooth: Fix wrong opcode error for read advertising features

The read advertising features error handling returns false the opcode
for the set advertising command.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

net/bluetooth/mgmt.c

@@ -7476,7 +7476,7 @@ static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
 	 * advertising.
 	 */
 	if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
-		return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
+		return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
 				       MGMT_STATUS_NOT_SUPPORTED);
 
 	hci_dev_lock(hdev);