[Misc] Add SPDX-FileCopyrightText (#20428)

Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

vllm/model_executor/layers/quantization/rtn.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 # Copyright © 2025, Oracle and/or its affiliates.
 
 import os

vllm/model_executor/model_loader/tpu.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import time
 from typing import Optional
 

vllm/model_executor/models/aya_vision.py

 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project Adapted from
-# https://github.com/huggingface/transformers/tree/main/src/transformers/models/aya_vision
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# Adapted from https://github.com/huggingface/transformers/tree/main/src/transformers/models/aya_vision
 from collections.abc import Iterable, Mapping, Sequence
 from typing import Literal, Optional, TypedDict, Union, cast
 

vllm/model_executor/models/dots1.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py

vllm/model_executor/models/glm4_1v.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Adapted from
 # https://github.com/huggingface/transformers/blob/main/src/transformers/models/Glm4v/modeling_Glm4v.py

vllm/model_executor/models/tarsier.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import math
 from collections.abc import Iterable, Mapping, Sequence

vllm/transformers_utils/configs/nemotron_h.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright 2024 HuggingFace Inc. team. All rights reserved.
 # Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.

vllm/v1/attention/backends/cpu_attn.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import numpy as np
 import torch
 

vllm/v1/attention/backends/flex_attention.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Attention layer with FlashAttention."""
 
 from dataclasses import dataclass

vllm/v1/attention/backends/mla/cutlass_mla.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 from typing import Any, Optional
 

vllm/v1/attention/backends/rocm_aiter_fa.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Attention layer with AiterFlashAttention."""
 from dataclasses import dataclass
 from typing import TYPE_CHECKING, Any, Optional

vllm/v1/core/kv_cache_coordinator.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 from abc import ABC, abstractmethod
 from typing import Callable, Optional
 

vllm/v1/pool/metadata.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 from dataclasses import dataclass
 from typing import Optional
 

vllm/v1/sample/logits_processor.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import dataclasses
 from abc import ABC, abstractmethod
 from collections.abc import Iterator, Sequence

vllm/v1/worker/cpu_model_runner.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 from contextlib import contextmanager
 from typing import Any
 

vllm/v1/worker/cpu_worker.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import os
 from importlib import util
 from typing import Optional

vllm/v1/worker/xpu_model_runner.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 from typing import TYPE_CHECKING
 
 import torch

vllm/v1/worker/xpu_worker.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import os
 
 import torch