[clang] [llvm] [SPIRV] Test files for SPV_INTEL_device_side_avc_motion_estimation,SPV_INTEL_fast_math_mode,SPV_KHR_bfloat16,SPV_KHR_untyped_pointers (PR #153549)

[Dmitry Sidorov via llvm-commits]

https://github.com/MrSidims requested changes to this pull request.

Please don't add tests for unimplemented extensions. They should be added along with implementation PRs.

https://github.com/llvm/llvm-project/pull/153549