add license in file (#303)

include/ck/tensor_operation/gpu/device/device_pool2d_fwd.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/device_pool2d_fwd_nhwc_nhwc.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/device_reduce.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <vector>

include/ck/tensor_operation/gpu/device/device_reduce_common.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <vector>

include/ck/tensor_operation/gpu/device/device_reduce_multiblock.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/device_reduce_threadwise.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/device_softmax.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/device_unary_elementwise.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include <iostream>

include/ck/tensor_operation/gpu/device/gemm_specialization.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 namespace ck {

include/ck/tensor_operation/gpu/device/reduction_operator_mapping.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/reduction_operator.hpp"

include/ck/tensor_operation/gpu/device/tensor_layout.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 namespace ck {

include/ck/tensor_operation/gpu/element/binary_element_wise_operation.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/data_type.hpp"

include/ck/tensor_operation/gpu/element/element_wise_operation.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/data_type.hpp"

include/ck/tensor_operation/gpu/element/unary_element_wise_operation.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/data_type.hpp"

include/ck/tensor_operation/gpu/grid/block_to_ctile_map.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/math.hpp"

include/ck/tensor_operation/gpu/grid/gridwise_2d_reduction_multiblock.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/reduction_common.hpp"

include/ck/tensor_operation/gpu/grid/gridwise_2d_reduction_threadwise.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/data_type.hpp"

include/ck/tensor_operation/gpu/grid/gridwise_5ary_Elementwise_1d.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/tensor_description/cluster_descriptor.hpp"

include/ck/tensor_operation/gpu/grid/gridwise_binary_elementwise_1d.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #pragma once
 
 #include "ck/utility/data_type.hpp"

include/ck/tensor_operation/gpu/grid/gridwise_contraction_dlops_v1r2.hpp

+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
+
 #ifndef CK_GRIDWISE_CONTRACTION_DLOPS_V1R2_HPP
 #define CK_GRIDWISE_CONTRACTION_DLOPS_V1R2_HPP