add license in file (#303)

example/13_pool2d_fwd/pool2d_fwd_common.hpp

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

example/13_pool2d_fwd/pool2d_fwd_fp16.cpp

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

example/13_pool2d_fwd/pool2d_fwd_fp32.cpp

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

example/14_gemm_xdl_requant_relu_requant/gemm_xdl_requant_relu_requant_int8.cpp

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

example/15_grouped_gemm/grouped_gemm_xdl_fp16.cpp

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

example/16_gemm_reduce/gemm_reduce_xdl_max_fp16.cpp

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

example/16_gemm_reduce/gemm_reduce_xdl_mean_squaremean_fp16.cpp

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

example/17_convnd_bwd_data_xdl/convnd_bwd_data_xdl.cpp

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

example/18_batched_gemm_reduce/batched_gemm_reduce_xdl_fp16.cpp

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

example/19_binary_elementwise/broadcast_add_2d_amn_bn.cpp

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

example/19_binary_elementwise/broadcast_add_3d_am_bmnk.cpp

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

example/19_binary_elementwise/elementwise_add_1d.cpp

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

example/19_binary_elementwise/elementwise_add_4d.cpp

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

example/20_convnd_bwd_weight_xdl/convnd_bwd_weight_xdl.cpp

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

example/20_convnd_bwd_weight_xdl/convnd_bwd_weight_xdl_bf16_splitk.cpp

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

example/21_gemm_layernorm/gemm_bias_relu_add_layernorm_xdl_fp16.cpp

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

example/21_gemm_layernorm/gemm_layernorm_xdl_fp16.cpp

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

example/22_cgemm/cgemm_xdl_fp16.cpp

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

example/23_softmax/softmax_blockwise.cpp

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

include/ck/device_utility/device_prop.hpp

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