Fix conv1d with explicit precision (#75824)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/75824
X-link: https://github.com/pytorch/fx2trt/pull/57
Reviewed By: jerryzh168
Differential Revision: D35621145
fbshipit-source-id: 639c373f5e3e187eb6971d7f2d4b5e92f11dfc62
(cherry picked from commit 69602c0089941096e242fbb065685267e50bf26e)
