[NNC] support aten::_convolution when it is 2D conv (#84038)
## Motivation
Currently, only `aten::conv2d` has been supported in NNC. When using `torch.jit.trace`, the node on the graph will be `aten::_convolution`. This PR adds support of `aten::_convolution` node when it corresponds to a 2D convolution.
## Pitch
Support `aten::_convolution` in NNC when we can infer from the parameters that it is a 2D convolution to support models obtained from `torch.jit.trace`.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/84038
Approved by: https://github.com/huiguoo
