[vulkan] Use 2D texture types for convolution weights and biases (#86972)
Differential Revision: [D40385500](https://our.internmc.facebook.com/intern/diff/D40385500/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/86972
Approved by: https://github.com/salilsdesai, https://github.com/kirklandsign