Export of Openai Whisper with batched prompts (#19854)
Adds an example to demonstrate the export of openai whipser
implemenation with batch_size > 1 and addition of prompts for each audio
snippet.
Also handles the scenario for when prompts are not of the same size. For
example if our prompt ids are [p1_id_1, p1_id_2] and [p2_id_1], the
final decoder_input_ids will look as such after padding:
`[prev_token, p1_id_1, p1_id_2, start_token, lang_token,
transcribe_token]
[prev_token, p2_id_1, PAD_TOKEN, start_token, lang_token,
transcribe_token]`
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Co-authored-by: kunal-vaishnavi <115581922+kunal-vaishnavi@users.noreply.github.com>
