wavtokenizer-dec : bound posnet/convnext block_count against n_layer_all (#26892)
* wavtokenizer-dec : bound posnet/convnext block_count against n_layer_all
* Update src/llama-model.cpp
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@huggingface.co>
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Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@huggingface.co>