[1/N][Attention] Restructure attention: move files (#31916)

Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>

vllm/model_executor/models/llama4.py

@@ -25,7 +25,6 @@ from torch import nn
 from transformers import Llama4TextConfig
 
 from vllm.attention.layer import Attention
-from vllm.attention.layers.chunked_local_attention import ChunkedLocalAttention
 from vllm.compilation.decorators import support_torch_compile
 from vllm.config import CacheConfig, VllmConfig
 from vllm.distributed import (
@@ -34,6 +33,9 @@ from vllm.distributed import (
     tensor_model_parallel_all_gather,
 )
 from vllm.logger import init_logger
+from vllm.model_executor.layers.attention.chunked_local_attention import (
+    ChunkedLocalAttention,
+)
 from vllm.model_executor.layers.fused_moe import SharedFusedMoE
 from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.linear import (