[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/xlite/xlite.py

@@ -61,7 +61,7 @@ class LlamaXliteModel(XliteModel):
         xlite_model.embed = params_dict.get(model_prefix +
                                             "model.embed_tokens.weight")
         xlite_model.norm = params_dict.get(model_prefix + "model.norm.weight")
-        if vllm_config.model_config.hf_config.tie_word_embeddings:
+        if vllm_config.model_config.hf_text_config.tie_word_embeddings:
             xlite_model.head = xlite_model.embed
         else:
             xlite_model.head = params_dict.get(model_prefix + "lm_head.weight")
@@ -118,7 +118,7 @@ class LlamaXliteModel(XliteModel):
         return (xlite_model, freq_cis, config.hidden_size, dtype)
 
     def _build_model_config(self, vllm_config: VllmConfig) -> ModelConfig:
-        hf_config = vllm_config.model_config.hf_config
+        hf_config = vllm_config.model_config.hf_text_config
         if hasattr(hf_config, "text_config"):
             hf_config = hf_config.text_config
         config = ModelConfig()