Addition of num_compute_units query for device info

[dyniols]

This change introduces new enumerator for enum ur_device_info_t with name UR_DEVICE_INFO_NUM_COMPUTE_UNITS to get number of compute units for different combinations of device and backend.
It's needed for extension sycl_ext_oneapi_num_compute_units https://github.com/Pennycook/llvm/blob/100b35b47bc6e35f3cf0bcc3c185df854d4da9c9/sycl/doc/extensions/proposed/sycl_ext_oneapi_num_compute_units.asciidoc

intel/llvm#16538

[aarongreig]

please also update our urDeviceGetInfo conformance test with the new enum https://github.com/oneapi-src/unified-runtime/blob/main/test/conformance/device/urDeviceGetInfo.cpp#L126

[dyniols]

please also update our urDeviceGetInfo conformance test with the new enum https://github.com/oneapi-src/unified-runtime/blob/main/test/conformance/device/urDeviceGetInfo.cpp#L126

Done

[aarongreig]

you'll need a tag update PR in the LLVM repo as well, like this https://github.com/intel/llvm/pull/16572/files

[dyniols]

you'll need a tag update PR in the LLVM repo as well, like this https://github.com/intel/llvm/pull/16572/files

Could you check if I got this right? Thanks!

[aarongreig]

you'll need a tag update PR in the LLVM repo as well, like this https://github.com/intel/llvm/pull/16572/files

Could you check if I got this right? Thanks!

yeah that looks correct, just going to link it here for future reference intel/llvm#16538

once this PR is merged a UR maintainer will update the tag for you and get the LLVM PR merged