Merge "Add buffer in pin_reply in bluetooth.cc" into tm-dev

static int pin_reply(const RawAddress* bd_addr, uint8_t accept, uint8_t pin_len,

                     bt_pin_code_t* pin_code) {

  bt_pin_code_t tmp_pin_code;

  if (!interface_ready()) return BT_STATUS_NOT_READY;

  if (pin_code == nullptr || pin_len > PIN_CODE_LEN) return BT_STATUS_FAIL;

  memcpy(&tmp_pin_code, pin_code, pin_len);

  do_in_main_thread(FROM_HERE, base::BindOnce(btif_dm_pin_reply, *bd_addr,

                                              accept, pin_len, *pin_code));

                                              accept, pin_len, tmp_pin_code));

  return BT_STATUS_SUCCESS;

}