[Misc] Add SPDX-FileCopyrightText (#19100)

Signed-off-by: simon-mo <simon.mo@hey.com>

vllm/benchmarks/throughput.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """Benchmark offline inference throughput."""
 import argparse
 import dataclasses

vllm/benchmarks/utils.py

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

vllm/collect_env.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # ruff: noqa
 # code borrowed from https://github.com/pytorch/pytorch/blob/main/torch/utils/collect_env.py
@@ -6,7 +7,6 @@
 import datetime
 import locale
 import os
-import re
 import subprocess
 import sys
 # Unlike the rest of the PyTorch this file must be python2 compliant.
@@ -14,6 +14,8 @@ import sys
 # Run it with `python collect_env.py` or `python -m torch.utils.collect_env`
 from collections import namedtuple
 
+import regex as re
+
 from vllm.envs import environment_variables
 
 try:
@@ -815,4 +817,4 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
+    main()
\ No newline at end of file

vllm/compilation/activation_quant_fusion.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import torch
 from torch._higher_order_ops.auto_functionalize import auto_functionalized

vllm/compilation/backends.py

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

vllm/compilation/base_piecewise_backend.py

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

vllm/compilation/collective_fusion.py

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

vllm/compilation/compiler_interface.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 import contextlib
 import copy
 import hashlib

vllm/compilation/counter.py

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

vllm/compilation/cuda_piecewise_backend.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import dataclasses
 from contextlib import ExitStack

vllm/compilation/decorators.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 import inspect
 from typing import Callable, Optional, TypeVar, Union, overload

vllm/compilation/fix_functionalization.py

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

vllm/compilation/fusion.py

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

vllm/compilation/fx_utils.py

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

vllm/compilation/inductor_pass.py

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

vllm/compilation/monitor.py

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

vllm/compilation/multi_output_match.py

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

vllm/compilation/noop_elimination.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 from collections.abc import Iterable
 from typing import Union

vllm/compilation/pass_manager.py

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

vllm/compilation/sequence_parallelism.py

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