The 'rt-setup' package configures details required by RHEL-RT environment.
- creates realtime group
- adds realtime limits configuration for PAM
- adds /usr/bin/rt-setup-kdump to config kdump in RT
- adds udev specific rules for threaded irqs and /dev/rtc access
- adds /usr/bin/slub_cpu_partial_off to turn off cpu_partials in SLUB
- adds net-socket timestamp static key daemon (rt-entsk)