Improve systemd kernel module handling
Changes to front end start systemd generator:
Systemd service for user model kernel modules are now bound to the service for the iop kernel module. This results in the user model modules being removed when the iop model is shutdown.
Likewise, the iop model requires dis_nodemgr on dolphin nodes, and each dolphin service is bound to the previous dolphin service.
RTCDS: fixed issue where status was mistaking kernel modules for another that's name was a strict prefix of the first. I'd had a fix earlier, but apparently did not update all greps involved. This change extends that earlier fix to the last grep.