[XPU][CPU] Enable the native path of DeepSeek (#4086)

Co-authored-by: Zhang, Liangang <liangang.zhang@intel.com>

python/sglang/srt/layers/quantization/base_config.py

@@ -54,8 +54,18 @@ class QuantizationConfig(ABC):
         """Minimum GPU capability to support the quantization method.
 
         E.g., 70 for Volta, 75 for Turing, 80 for Ampere.
-        This requirement is due to the custom CUDA kernels used by the
-        quantization method.
+        This requirement is due to the custom kernels used by the
+        quantization method or the stock pytorch capability.
+        """
+        raise NotImplementedError
+
+    @classmethod
+    @abstractmethod
+    def get_availability(cls) -> bool:
+        """Whether the quantization config is available on current device.
+
+        This requirement is due to the custom kernels used by the
+        quantization method or the stock pytorch capability.
         """
         raise NotImplementedError