Moderate: systemd security and bug fix update (Oracle Linux 8)

[239-68.0.2]
- Backport upstream pstore dmesg fix [Orabug: 34850699]
- Standardize ioctl (BTRFS_IOC_QGROUP_CREATE) check and return -ENOTCONN, if quota is not enabled [Orabug: 34694253]
- Disable unprivileged BPF by default [Orabug: 32870980]
- backport upstream pstore tmpfiles patch [Orabug: 31420486]
- udev rules: fix memory hot add and remove [Orabug: 31310273]
- fix to enable systemd-pstore.service [Orabug: 30951066]
- journal: change support URL shown in the catalog entries [Orabug: 30853009]
- fix to generate systemd-pstore.service file [Orabug: 30230056]
- fix _netdev is missing for iscsi entry in /etc/fstab (tony.l.lam@oracle.com) [Orabug: 25897792]
- set 'RemoveIPC=no' in logind.conf as default for OL7.2 [Orabug: 22224874]
- allow dm remove ioctl to co-operate with UEK3 (Vaughan Cao) [Orabug: 18467469]
- add hv dynamic memory support (Jerry Snitselaar) [Orabug: 18621475]
- Backport upstream patches for the new systemd-pstore tool (Eric DeVolder) [OraBug: 30230056]

[239-68.4]
- basic: add STRERROR() wrapper for strerror_r() (#2155519)
- coredump: put context array into a struct (#2155519)
- coredump: do not allow user to access coredumps with changed uid/gid/capabilities (#2155519)

[239-68.3]
- core: bring manager_startup() and manager_reload() more inline (#2164049)