[inductor] Move two cpu tests to test_cpu_repro.py (#101887)
Summary: The two are cpu only tests.
Test Plan:
```
buck2 test @//mode/dev-nosan //caffe2/test/inductor:test_inductor -- --exact 'caffe2/test/inductor:test_inductor - test_in_out_buffer_cuda (caffe2.test.inductor.test_torchinductor.CudaTests)' --run-disabled
```
Reviewed By: bertmaher
Differential Revision: D46011571
Pull Request resolved: https://github.com/pytorch/pytorch/pull/101887
Approved by: https://github.com/bertmaher
