[ONNX] Support nn.init.normal (#84149)
* Updated symbolic function for `aten::normal` to support additional generator arguments emitted from https://github.com/pytorch/pytorch/blob/5563248b5882231cb99105b042cc32bddd18b912/torch/csrc/jit/passes/remove_mutation.cpp#L51
* Added symbolic function for `aten::is_pinned` and `prim::layout`. Both are unused by ONNX later on.
Fixes #83647
Pull Request resolved: https://github.com/pytorch/pytorch/pull/84149
Approved by: https://github.com/AllenTiTaiWang, https://github.com/abock
