[Feat] allow using aclgraph in ray backend

Signed-off-by: Signed-off-by: WithHades <244036962@qq.com>

Author: WithHades

vllm_ascend/platform.py

@@ -172,7 +172,7 @@ def check_and_update_config(cls, vllm_config: VllmConfig) -> None:
             compilation_config.cudagraph_mode = CUDAGraphMode.NONE
 
         # set cudaprah sizes before extending `compilation_config.splitting_ops`
-        vllm_config._set_cudagraph_sizes()
+        vllm_config._set_cudagraph_sizes(3)
 
         if compilation_config.cudagraph_mode == CUDAGraphMode.NONE:
             compilation_config.level = CompilationLevel.NO_COMPILATION