Enable end-to-end compare.mlir.test for vulkan-spirv backend.
Enable end-to-end compare.mlir.test for vulkan-spirv backend.

This is unblocked by cl/299458222 and cl/300211699.

PiperOrigin-RevId: 300371779

google/iree,google/iree,google/iree,google/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree