Update base for Update on "[2/2] Intel GPU Runtime Upstreaming for Ge…

…nerator"


# Motivation
According to [[1/2] Intel GPU Runtime Upstreaming for Generator](#118528), as mentioned in [[RFC] Intel GPU Runtime Upstreaming](#114842), the second PR covers the changes under `python frontend`.

# Design
Currently, it primarily offers geneartor-related APIs, including

- `torch.xpu.default_generators`
- `torch.xpu.get_rng_state`
- `torch.xpu.get_rng_state_all`
- `torch.xpu.initial_seed`
- `torch.xpu.manual_seed`
- `torch.xpu.manual_seed_all`
- `torch.xpu.seed`
- `torch.xpu.seed_all`
- `torch.xpu.set_rng_state`
- `torch.xpu.set_rng_state_all`

# Additional Context
The differences with CUDA:
The generator-related frontend python APIs are 1:1 mapping with CUDA.

cc jgong5 mingfeima XiaobingSuper sanchitintel ashokei jingxu10

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