Download only split data
### Feature request

Is it possible to download only the data that I am requesting and not the entire dataset? I run out of disk spaceas it seems to download the entire dataset, instead of only the part needed.

common_voice["test"] = load_dataset("mozilla-foundation/common_voice_11_0", "en", split="test", 
                                    cache_dir="cache/path...",
                                    use_auth_token=True,
                                    download_config=DownloadConfig(delete_extracted='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')
                                    )


### Motivation

efficiency improvement

### Your contribution

n/a