Check auto mappings could be imported via `from transformers`
# What does this PR do?

As shown in #24364, we easily forget to add model mappings like `TF_MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING` to some `__init__` files.

Let's add a check to avoid and could detect such issues as early as possible.

Along this new check, also add some missing mappings to `__init__` files.
_The documentation is not available anymore as the PR was closed or merged._