[static_runtime] Implement aten::linear (#61595)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/61595
Add out variant wrapper for `aten::linear` in the static runtime
Test Plan: `buck test //caffe2/benchmarks/static_runtime:static_runtime_cpptest`
Reviewed By: hlu1
Differential Revision: D29684236
fbshipit-source-id: 94df6d7267b3f269b2cadf065f207648777147df
