[HIP] Make the new driver bundle outputs for device-only (#84534)

Summary:
The current behavior of HIP is that when --offload-device-only is set it
still bundles the outputs into a fat binary. Even though this is
different from how all the other targets handle this, it seems to be
dependned on by some tooling so just make it backwards compatible for
the `-fno-gpu-rdc` case.