This update for systemd fixes the following issues:

cgroup: Parse infinity properly for memory protections. (bsc#1167471)
cgroup: Make empty assignments reset to default. (bsc#1167471)
cgroup: Support 0-value for memory protection directives. (bsc#1167471)
core/cgroup: Fixed an issue with ignored parameter of 'MemorySwapMax=0'. (bsc#1154935)
bus-unit-util: Add proper 'MemorySwapMax' serialization.
core: Accept MemorySwapMax= properties that are scaled.
execute: Make sure to call into PAM after initializing resource limits. (bsc#1184967)
core: Rename 'ShutdownWatchdogSec' to 'RebootWatchdogSec'. (bsc#1185331)
Return -EAGAIN instead of -EALREADY from unit_reload. (bsc#1185046)
rules: Don't ignore Xen virtual interfaces anymore. (bsc#1178561)
write_net_rules: Set execute bits. (bsc#1178561)
udev: Rework network device renaming.
Revert "Revert "udev: Network device renaming - immediately give up if the target name isn't available""

mount-util: tape over name_to_handle_at() flakiness (#7517) (bsc#1184761)
core: fix output (logging) for mount units (#7603) (bsc#1187400)
udev requires systemd in its %post (bsc#1185958)
cgroup: Parse infinity properly for memory protections (bsc#1167471)
cgroup: Make empty assignments reset to default (bsc#1167471)
cgroup: Support 0-value for memory protection directives (bsc#1167471)
Create /run/lock/subsys again (bsc#1187292)
The creation of this directory was mistakenly dropped when
'filesystem' package took the initialization of the generic paths
over.
Expect 644 permissions for /usr/lib/udev/compat-symlink-generation (bsc#1185807)

This update was imported from the SUSE:SLE-15:Update update project.