Use of urEnqueueUSMFill on OpenCL enforces requirement on Host Mem Allocs for odd sizes of pattern

[coldav]

On oneapi-construction-kit/refsi we support USM but not Host Allocs. The workaround for odd sizes of pattern_size calls clHostMemAllocINTEL_fn which refsi does not support, and likely many implementations won't. refsi does support device allocations however.

This can be reproduced by building cloning https://github.com/codeplaysoftware/oneapi-construction-kit.git and building with:

cmake -GNinja -DCA_MUX_TARGETS_TO_ENABLE="riscv" -DCA_RISCV_ENABLED=ON  -DCA_ENABLE_API=cl       -DCA_LLVM_INSTALL_DIR=<llvm_install>  -DCA_CL_ENABLE_ICD_LOADER=ON   -DOCL_EXTENSION_cl_khr_command_buffer=ON -DOCL_EXTENSION_cl_khr_command_buffer_mutable_dispatch=ON

LLVM Install requires RISCV and lld to be enabled.

This is shown up in the SYCL CTS test: test_queue/queue shortcuts unified shared memory core

where it looks to cover a fill of pattern_size 12 after commit https://github.com/intel/llvm/pull/13788