[mlir] Add NVVM to CUBIN conversion to mlir-opt

If MLIR_CUDA_RUNNER_ENABLED, register a 'gpu-to-cubin' conversion pass to mlir-opt.

The next step is to switch CUDA integration tests from mlir-cuda-runner to mlir-opt + mlir-cpu-runner and remove mlir-cuda-runner.

Depends On D98279

Reviewed By: herhut, rriddle, mehdi_amini

Differential Revision: https://reviews.llvm.org/D98203