Skip device validation to make plugin device work

Signed-off-by: Yikun Jiang <[email protected]>

Author: Yikun

vllm/config.py

@@ -2231,7 +2231,7 @@ def is_multi_step(self) -> bool:
 class DeviceConfig:
     """Configuration for the device to use for vLLM execution."""
 
-    device: Union[Device, torch.device] = "auto"
+    device: SkipValidation[Union[Device, torch.device]] = "auto"
     """Device type for vLLM execution.
     This parameter is deprecated and will be 
     removed in a future release.