[SYCL] Implement `sycl_ext_oneapi_device_is_integrated_gpu`#20289

dm-vodopyanov wants to merge 5 commits intointel:syclintel/llvm:syclfrom

dm-vodopyanov:impl_device_is_integrated_gpudm-vodopyanov/llvm:impl_device_is_integrated_gpuCopy head branch name to clipboard