[Bugfix] Update device name for H200 detection (#28349)

Signed-off-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com>

vllm/model_executor/layers/fused_moe/fused_moe.py

@@ -819,8 +819,8 @@ def get_config_file_name(
 ) -> str:
     device_name = current_platform.get_device_name().replace(" ", "_")
     # Set device_name to H200 if a device from the H200 family is detected
-    if "H200" in device_name:
-        device_name = "H200"
+    if "H200" in device_name.split("_"):
+        device_name = "NVIDIA_H200"
     dtype_selector = "" if not dtype else f",dtype={dtype}"
     block_shape_selector = (
         "" if not block_shape or not all(block_shape) else f",block_shape={block_shape}"