enable ut test for xpu devices (#11712)

Co-authored-by: jundu <jun.du@intel.com>
Co-authored-by: Gao, Pengfei <pengfei.gao@intel.com>

test/manual/test_forward_split_prefill.py

@@ -20,6 +20,7 @@ from sglang.srt.model_executor.model_runner import ModelRunner
 from sglang.srt.sampling.sampling_params import SamplingParams
 from sglang.srt.server_args import PortArgs, ServerArgs
 from sglang.srt.speculative.spec_info import SpeculativeAlgorithm
+from sglang.srt.utils import get_device
 from sglang.srt.utils.hf_transformers_utils import get_tokenizer
 from sglang.test.test_utils import DEFAULT_SMALL_MODEL_NAME_FOR_TEST, CustomTestCase
 
@@ -32,7 +33,7 @@ class TestForwardSplitPrefill(CustomTestCase):
         """Set up the test environment once for all tests."""
         cls.model_path = DEFAULT_SMALL_MODEL_NAME_FOR_TEST
         cls.tp_size = 1
-        cls.device = "cuda"
+        cls.device = get_device()
 
         # Initialize server args
         cls.server_args = ServerArgs(