Disk "name" in BMH HardwareDetails is incorrect

After installation with the assisted installer, the cluster contains BareMetalHost CRs (in the 'unmanaged' state) generated by assisted. These CRs include HardwareDetails data captured from the assisted-installer-agent.
Likely due to misleading documentation in Metal³ (since fixed by https://github.com/metal3-io/baremetal-operator/pull/657), the name field of storage devices is set to a name like sda instead of what Metal³'s own inspection would set it to, which is /dev/sda. This field is meant to be round-trippable to the rootDeviceHints, and as things stand it is not.