📝 docs(diffusion): add MXFP4 quantization docs (#25904)

docs_new/docs/hardware-platforms/ascend-npus/ascend_npu_quantization.mdx

@@ -52,6 +52,14 @@ SGLang support **mix-bits** quantization (independently defines and loads each l
       <td><strong style={{color: 'green'}}>√</strong></td>
       <td><strong style={{color: 'green'}}>√</strong></td>
     </tr>
+    <tr>
+      <td><a href="https://github.com/sgl-project/sglang/pull/22338">MXFP4</a></td>
+      <td>Linear</td>
+      <td><strong style={{color: 'red'}}>x</strong></td>
+      <td><strong style={{color: 'red'}}>x</strong></td>
+      <td><strong style={{color: 'green'}}>√</strong></td>
+      <td><strong style={{color: 'green'}}>√</strong></td>
+    </tr>
     <tr>
       <td>W4A4 dynamic</td>
       <td>MoE</td>