- Import commit 8521f8d22fd44400289fcea03493ebd7f8b1487d (merge of v249.5)
For a complete list of changes, visit:
https://github.com/openSUSE/systemd/compare/355e113ce193e5e2d195278c57d47f9a1b00ae46...8521f8d22fd44400289fcea03493ebd7f8b1487d

- Import commit 355e113ce193e5e2d195278c57d47f9a1b00ae46
3b4a005095 meson: add missing include directory when using xkbcommon
4c4e642712 meson: allow extra net naming schemes to be defined during configuration (jsc#SLE-18514)
78466e4464 meson: drop the list of valid net naming schemes
b9a2098f9d netif-naming: inline one iterator variable
d7fbbc5e74 Add remaining supported schemes as options for default-net-naming-scheme

- Rename %{gnu-efi} into %{sd_boot}
Build conditionals (%bcond_with and %bcond_without) are used to
define a specific feature of systemd. "gnu-efi" is rather an
implemenation detail. Also not really sure what "efi" option alone
is useful for since systemd-boot & co depends on "gnu-efi".
- Enable sd_boot support for aarch64

- Ghost own directories /var/log/journal and /var/log/journal/remote again
rpmlint no more complain about the setgid bit, see sr#923496.

- Overwriting rootprefix= is only required when split-usr is enabled

- Rename %usrmerged into %split_usr

- Suppress PAM warning when the credentials for user@.service service
are established (bsc#1190515)
systemd-user PAM service needs to define a default implementation of
pam_setcred() otherwise the fallback (defined by /etc/pam.d/other)
is used, which consists of pam_warn.so + pam_deny.so, and will throw