[fix] fix SM check for Flashinfer TRTLLM MOE (#30314)

Signed-off-by: jiahanc <173873397+jiahanc@users.noreply.github.com>

vllm/model_executor/layers/quantization/utils/flashinfer_utils.py

@@ -290,7 +290,7 @@ def get_flashinfer_moe_backend() -> FlashinferMoeBackend:
     if flashinfer_moe_backend in backend_map:
         if (
             flashinfer_moe_backend == "latency"
-            and not current_platform.is_device_capability(100)
+            and not current_platform.has_device_capability(100)
         ):
             logger.info_once(
                 "Flashinfer TRTLLM MOE backend is only supported on "