Print benchmark model timing in milliseconds
Print benchmark model timing in milliseconds

This is much more readable than the default nanoseconds.

PiperOrigin-RevId: 314639334

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