[Mosaic GPU] Support profiling for WG semantic. #32465
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This requires minimal changes to transform inference and dialect lowering. I.e. * We treat memrefs of rank 0 as non transformable. This is necessary to support scalar memref loads and stores as well as converting scalar memrefs to pointers. * Add a passthrough memref transform inference rule for memref loads. This is required to be able to load from a SMEM ref with no transform. Note: We need to revert [#32234](#32234) because we can't lower vector loads and stores with no layout. PiperOrigin-RevId: 817089272
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[Mosaic GPU] Support profiling for WG semantic.
This requires minimal changes to transform inference and dialect lowering. I.e.
Note: We need to revert #32234 because we can't lower vector loads and stores with no layout.