[Misc] Add SPDX-FileCopyrightText (#19100)

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

vllm/model_executor/layers/linear.py

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

vllm/model_executor/layers/logits_processor.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 """A layer that compute logits from hidden_stats."""
 import inspect
 from concurrent.futures import ThreadPoolExecutor

vllm/model_executor/layers/mamba/mamba2_metadata.py

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

vllm/model_executor/layers/mamba/mamba_mixer.py

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

vllm/model_executor/layers/mamba/mamba_mixer2.py

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

vllm/model_executor/layers/mamba/ops/causal_conv1d.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao.
 # Adapted from https://github.com/Dao-AILab/causal-conv1d/blob/main/causal_conv1d/causal_conv1d_interface.py

vllm/model_executor/layers/mamba/ops/mamba_ssm.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/selective_state_update.py

vllm/model_executor/layers/mamba/ops/ssd_bmm.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/ssd_bmm.py

vllm/model_executor/layers/mamba/ops/ssd_chunk_scan.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/ssd_chunk_scan.py

vllm/model_executor/layers/mamba/ops/ssd_chunk_state.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/ssd_chunk_state.py

vllm/model_executor/layers/mamba/ops/ssd_combined.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/ssd_combined.py

vllm/model_executor/layers/mamba/ops/ssd_state_passing.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Copyright (c) 2024, Tri Dao, Albert Gu.
 # Adapted from https://github.com/state-spaces/mamba/blob/v2.2.4/mamba_ssm/ops/triton/ssd_state_passing.py

vllm/model_executor/layers/pooler.py

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

vllm/model_executor/layers/quantization/__init__.py

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

vllm/model_executor/layers/quantization/aqlm.py

 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Supports AQLM compression, see https://github.com/Vahe1994/AQLM
 # and https://arxiv.org/pdf/2401.06118.pdf

vllm/model_executor/layers/quantization/auto_round.py

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

vllm/model_executor/layers/quantization/awq.py

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

vllm/model_executor/layers/quantization/awq_marlin.py

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

vllm/model_executor/layers/quantization/awq_triton.py

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

vllm/model_executor/layers/quantization/base_config.py

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