[Misc] Improve error messages for unsupported types and parameters (#30593)

Signed-off-by: BlankR <hjyblanche@gmail.com>
Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com>

vllm/model_executor/models/minimax_text_01.py

@@ -332,7 +332,8 @@ class MiniMaxText01DecoderLayer(nn.Module):
             )
         else:
             raise ValueError(
-                f"Unsupported attention type: {self.config.attention_type}"
+                f"Unsupported attention_type {self.config.attention_type}: "
+                f"should be 0 (linear) or 1 (full)."
             )
 
         if expert_num == 1: