sycl: initial cmake support of SYCL for AMD GPUs#9658

OuadiElfarouki merged 4 commits intoggml-org:masterggml-org/llama.cpp:masterfrom

Alcpz:Alcpz/sycl-amd-supportAlcpz/llama.cpp:Alcpz/sycl-amd-supportCopy head branch name to clipboard