[BugFix] Fix ascend config check (#1092)

Fix the ascend config check logic:
1. refactor check_ascend_config to make it clear:
    1. torchair graph should not work with enforce_eager=True
    2. aclgraph should not work with torchair graph
3. add refresh config for rlhf case
4. fix a typo in model runner
5. change expert_tensor_parallel_size default to 0 to keep the same as
before

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

vllm_ascend/platform.py

@@ -133,7 +133,7 @@ class NPUPlatform(Platform):
 
             # NOTE: When enable_expert_parallel is True, we follow vLLM convention:
             # ep_size = world_size, which means expert_tensor_parallel_size must be 1
-            if ascend_config.expert_tensor_parallel_size > 1 and not parallel_config.enable_expert_parallel:
+            if ascend_config.expert_tensor_parallel_size > 0 and not parallel_config.enable_expert_parallel:
                 parallel_config.expert_tensor_parallel_size = ascend_config.expert_tensor_parallel_size
 
             # Calculate expert parallel size based on world size