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intel/rt: fix ray_query stack address calculation

Ivan Briano requested to merge ibriano/mesa:ray_queries_stacks into main

What does this MR do and why?

intel/rt: fix ray_query stack address calculation

While the documentation says to use NUM_SIMD_LANES_PER_DSS for the stack
address calculation, what the HW actually uses is
NUM_SYNC_STACKID_PER_DSS. The former may vary depending on the platform,
while the latter is fixed to 2048 for all current platforms.

Fixes: 6c84cbd8c95 ("intel/dev/xe: Set max_eus_per_subslice using topology query")

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