[None][fix] Properly raise error for nemotron H models (#8697)

Signed-off-by: William Zhang <[email protected]>

Author: 2ez4bz

tensorrt_llm/_torch/models/modeling_nemotron_h.py

@@ -161,7 +161,7 @@ def __init__(
         elif layer_type == "*":
             self.mixer = TransformerLayer(model_config, layer_idx)
         else:
-            ValueError(f"{layer_type} is not supported")
+            raise ValueError(f"{layer_type} is not supported")
 
     def forward(
         self,