[dynamo] exclude reset_rng_state when measure timing (#92237)
Fixes inductor performance regression on CPU: https://github.com/pytorch/torchdynamo/issues/2027, https://github.com/pytorch/torchdynamo/issues/2028 and https://github.com/pytorch/torchdynamo/issues/2029.
The details are explained here: https://github.com/pytorch/torchdynamo/issues/2028#issuecomment-1381496678.
### Performance
- Model: lennard_jones
- Machine: IceLake (32 cores per socket)
- Configuration: single instance, 32 cores per instance
- jemalloc and iomp enabled
```bash
python benchmarks/dynamo/torchbench.py --inductor-settings --inductor --performance --float32 -dcpu -n5000 --no-skip --dashboard --only=lennard_jones --quiet
```
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Time before regression | Time after regression | Time with this PR
-- | -- | --
0.00020483799744397402 | 0.0002818034990923479 | 0.00020241099991835654
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Pull Request resolved: https://github.com/pytorch/pytorch/pull/92237
Approved by: https://github.com/jgong5, https://github.com/jansel
