[Bugfix][XPU] Fix free-memory abort and num_speculative_steps crash on XPU (#5330)

Signed-off-by: Joshna Medisetty <joshna.medisetty@intel.com>
Co-authored-by: Chendi.Xue <chendi.xue@intel.com>

tests/e2e/offline_inference/test_qwen3_tts_base.py

@@ -68,7 +68,7 @@ def get_prompt():
 
 @pytest.mark.advanced_model
 @pytest.mark.tts
-@hardware_test(res={"cuda": "L4"}, num_cards=1)
+@hardware_test(res={"cuda": "L4", "xpu": "B60"}, num_cards=1)
 @pytest.mark.parametrize("omni_runner", tts_server_params, indirect=True)
 def test_text_to_audio_001(omni_runner, omni_runner_handler) -> None:
     """