quantized elu: eager mode static handling (#40103)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40103
Add eager mode static quantization handling for quantized ELU.
Test Plan:
```
python test/test_quantization.py TestStaticQuantizedModule.test_elu
python test/test_quantization.py TestPostTrainingStatic.test_activations
```
Imported from OSS
Differential Revision: D22075081
fbshipit-source-id: 8a3df428be135a0565472ebd0f55fa801689bcc5
