* feat: Nemotron
https://huggingface.co/nvidia/Minitron-4B-Base
This is basically Llama with partial RoPE and LayerNorm instead of
BatchNorm. Also they add 1 to the LayerNorm weight for some reason.
* fixup! feat: Nemotron
* nits
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Co-authored-by: Awni Hannun <awni@apple.com>