[DOC] Update sycl_ext_oneapi_num_compute_units.asciidoc (https://github.com/intel/llvm/issues/21408)

[zjin-lcf]

Add a table entry for AMD GPU and a reference to streaming multiprocessors

[YuriPlyakhin]

I think it is better to link to primary sources. I don't know what's the right source, but here are some suggestions:

Intel: https://www.intel.com/content/www/us/en/docs/oneapi/optimization-guide-gpu/2025-2/intel-xe-gpu-architecture.html#INTEL-R-XE-GPU-BUILDING-BLOCKS
NVIDIA: https://docs.nvidia.com/deeplearning/performance/dl-performance-gpu-background/index.html#gpu-arch
AMD: https://rocm.docs.amd.com/projects/HIP/en/latest/understand/hardware_implementation.html#hierarchical-organization

[gmlueck]

@YuriPlyakhin do you have any more concerns with this PR?

[github-actions]

@intel/llvm-gatekeepers please consider merging

[github-actions]

@intel/llvm-gatekeepers please consider merging

[github-actions]

@intel/llvm-gatekeepers please consider merging

[gmlueck]

@intel/llvm-gatekeepers I think this is ready to merge.

[uditagarwal97]

@zjin-lcf

This commit will be authored by 57232910+zjin-lcf@users.noreply.github.com.

This commit will be authored by an anonymous email, which goes against LLVM contribution policies. See https://llvm.org/docs/DeveloperPolicy.html#email-addresses

the LLVM community requires contributors to have a public email address associated with their GitHub commits, so please ensure that “Keep my email addresses private” is disabled in your account settings.

[zjin-lcf]

@zjin-lcf

This commit will be authored by 57232910+zjin-lcf@users.noreply.github.com.

This commit will be authored by an anonymous email, which goes against LLVM contribution policies. See https://llvm.org/docs/DeveloperPolicy.html#email-addresses

the LLVM community requires contributors to have a public email address associated with their GitHub commits, so please ensure that “Keep my email addresses private” is disabled in your account settings.

It is disabled.

[uditagarwal97]

Thanks, I can see your email now

This commit will be authored by jinz@ornl.gov.

[YuriPlyakhin]

@YuriPlyakhin do you have any more concerns with this PR?

catching up. no concerns.