[Bugfix] fix default is_neox_style is True for deepseek (#34353)

Signed-off-by: dongxinyu03 <dongxinyu03@baidu.com>
(cherry picked from commit be7f3d5d)

vllm/model_executor/models/deepseek_v2.py

@@ -836,7 +836,7 @@ class DeepseekV2MLAAttention(nn.Module):
                 qk_rope_head_dim,
                 max_position=max_position_embeddings,
                 rope_parameters=config.rope_parameters,
-                is_neox_style=not getattr(config, "indexer_rope_interleave", True),
+                is_neox_style=not getattr(config, "indexer_rope_interleave", False),
             )
             self.indexer = Indexer(
                 vllm_config,