[NPU]grok2 model support (#17119)

Co-authored-by: cy <chenyang08056032@163.com>

test/registered/ascend/llm_models/test_ascend_grok_2.py

@@ -0,0 +1,29 @@
+import unittest
+
+from sglang.test.ascend.gsm8k_ascend_mixin import GSM8KAscendMixin
+from sglang.test.ci.ci_register import register_npu_ci
+from sglang.test.test_utils import CustomTestCase
+
+register_npu_ci(est_time=400, suite="nightly-16-npu-a3", nightly=True)
+
+
+class TestGrok2(GSM8KAscendMixin, CustomTestCase):
+    model = "/root/.cache/modelscope/hub/models/huihui-ai/grok-2"
+    accuracy = 0.91
+    other_args = [
+        "--trust-remote-code",
+        "--mem-fraction-static",
+        "0.8",
+        "--attention-backend",
+        "ascend",
+        "--disable-radix-cache",
+        "--disable-cuda-graph",
+        "--tokenizer-path",
+        "/root/.cache/modelscope/hub/models/huihui-ai/grok-2/tokenizer.tok.json",
+        "--tp-size",
+        "16",
+    ]
+
+
+if __name__ == "__main__":
+    unittest.main()