update comment

Signed-off-by: Jingyu Xin <[email protected]>

Author: jingyu-ml

modelopt/torch/quantization/nn/modules/tensor_quantizer.py

@@ -960,6 +960,7 @@ def forward(self, inputs):
             and self._fake_quant
         ):
             # Reshape is required if the logic is not handled in the simulation kernel
+            # Only MX format and NVFP4 reshape are currently supported by the kernel.
             self._setup_for_blockquant(inputs)
             setattr(self, "_original_input_shape", inputs.shape)
             inputs = self._process_for_blockquant(inputs)