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

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

vllm/model_executor/models/qwen2_5_vl.py

@@ -41,8 +41,6 @@ from transformers.models.qwen2_5_vl.configuration_qwen2_5_vl import (
     Qwen2_5_VLVisionConfig,
 )
 
-from vllm.attention.backends.registry import AttentionBackendEnum
-from vllm.attention.layers.mm_encoder_attention import MMEncoderAttention
 from vllm.compilation.decorators import support_torch_compile
 from vllm.config import MultiModalConfig, VllmConfig
 from vllm.distributed import parallel_state
@@ -50,6 +48,7 @@ from vllm.distributed import utils as dist_utils
 from vllm.forward_context import set_forward_context
 from vllm.logger import init_logger
 from vllm.model_executor.layers.activation import get_act_and_mul_fn
+from vllm.model_executor.layers.attention.mm_encoder_attention import MMEncoderAttention
 from vllm.model_executor.layers.conv import Conv3dLayer
 from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.linear import (
@@ -83,6 +82,7 @@ from vllm.multimodal.processing import PromptReplacement, PromptUpdate
 from vllm.sequence import IntermediateTensors
 from vllm.utils.platform_utils import is_pin_memory_available
 from vllm.utils.tensor_schema import TensorSchema, TensorShape
+from vllm.v1.attention.backends.registry import AttentionBackendEnum
 
 from .interfaces import (
     MultiModalEmbeddings,