Pass contiguous weight to NNPACK convolution (#56569)
Summary:
Added TestNN.test_conv2d_discontiguous_weight to prevent further regressions
Fixes https://github.com/pytorch/pytorch/issues/55781
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56569
Reviewed By: ngimel
Differential Revision: D27926509
Pulled By: malfet
fbshipit-source-id: fa5ce943c3e4db4aa4de1b1cba35bd399fb3c54d