nvs_action_get_stats, result->data 数据类型有误 (AUD-5372)

[tobraver]

esp_err_t nvs_action_get_stats(void *instance, action_arg_t *arg, action_result_t *result)
{
    AUDIO_MEM_CHECK(TAG, arg, return ESP_FAIL);
    AUDIO_MEM_CHECK(TAG, result, return ESP_FAIL);

    result->data = audio_calloc(1, sizeof(action_result_t));
    result->len = sizeof(action_result_t);

    return nvs_get_stats(arg->data, result->data);
}

result->data 数据类型应为 nvs_stats_t