Bluetooth: MGMT: Fix error report for ADD_EXT_ADV_PARAMS

When validating the parameter length for MGMT_OP_ADD_EXT_ADV_PARAMS
command, use the correct op code in error status report:
was MGMT_OP_ADD_ADVERTISING, changed to MGMT_OP_ADD_EXT_ADV_PARAMS.

Fixes: 12410572 ("Bluetooth: Break add adv into two mgmt commands")
Signed-off-by: Inga Stotland <inga.stotland@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

net/bluetooth/mgmt.c

@@ -8859,7 +8859,7 @@ static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
 	 * extra parameters we don't know about will be ignored in this request.
 	 */
 	if (data_len < MGMT_ADD_EXT_ADV_PARAMS_MIN_SIZE)
-		return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
+		return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
 				       MGMT_STATUS_INVALID_PARAMS);
 
 	flags = __le32_to_cpu(cp->flags);