Propagate the `spirv.loop_control` attribute from `scf.for` and `scf.while` operations to the generated `spirv.mlir.loop` during SCFToSPIRV conversion
Propagate the `spirv.loop_control` attribute from `scf.for` and `scf.while` operations to the generated `spirv.mlir.loop` during SCFToSPIRV conversion