[MM][Bugfix] Update hf_config to hf_text_config (#5319)

### What this PR does / why we need it?

Following https://github.com/vllm-project/vllm-ascend/pull/5205, update
`hf_config` to `hf_text_config`.

Find more details at
https://github.com/vllm-project/vllm-ascend/pull/5205#issuecomment-3675417534
and
https://github.com/vllm-project/vllm-ascend/pull/5205#issuecomment-3677920872.

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: release/v0.13.0
- vLLM main:
5fbfa8d9ef

Signed-off-by: shen-shanshan <467638484@qq.com>

vllm_ascend/distributed/parallel_state.py

@@ -167,7 +167,7 @@ def init_ascend_model_parallel(parallel_config: ParallelConfig, ):
 
     global _SHARED_WEIGHT
     # TODO: Check if the model is Deepseek V3.2 with enabled SFA CP and activated shared weights. It will then be normalized within the PCP parameters. -- clrs97
-    is_ds_v32 = hasattr(vllm_config.model_config.hf_config, "index_topk")
+    is_ds_v32 = hasattr(vllm_config.model_config.hf_text_config, "index_topk")
     if enable_sp() and is_ds_v32 and _SHARED_WEIGHT is None:
         _SHARED_WEIGHT = _create_shared_weight_group("CP_shared_weight")
     # TODO: Extract and unify the logic across different communication group.