make sure mkldnn convolution given same stride as ref path for nc11 contiguous input (#106966)
On SPR machine, the mkldnn bfloat16 convolution always return a channels last output, and we will convert it to channels first if input and weight are channels first, there has an issue when we do such conversion if output is nc11(4*512*1*1), we always mark it as public format ideep tensor, and even we calling ```to_dense``` before returning the output, the output's stride is still a channels last stride(512, 1, 512, 512), this PR will calling ```resize_``` to make sure the stride is contiguous stride.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106966
Approved by: https://github.com/mingfeima
