Add prelu op and module for quantized CPU backend (#73491)
Add prelu op and module for quantized CPU backend.
The PR includes:
- Quantized version of prelu op
- Native prelu kernel for quantized CPU
- Prelu modules in `nn` and `nn.quantized`
- FX support for prelu
- Unit tests
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73491
Approved by: https://github.com/jerryzh168
