common: Merge systemd upstream configuration changes

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/common/templates/journald.conf.j2

@@ -40,3 +40,4 @@ ForwardToWall=no
 #MaxLevelConsole=info
 #MaxLevelWall=emerg
 #LineMax=48K
+#ReadKMsg=yes

roles/common/templates/system.conf.j2

@@ -26,7 +26,9 @@
 #JoinControllers=cpu,cpuacct net_cls,net_prio
 #RuntimeWatchdogSec=0
 #ShutdownWatchdogSec=10min
+#WatchdogDevice=
 #CapabilityBoundingSet=
+#NoNewPrivileges=no
 #SystemCallArchitectures=
 #TimerSlackNSec=
 #DefaultTimerAccuracySec=1min
@@ -61,6 +63,3 @@ DefaultTasksAccounting=yes
 #DefaultLimitNICE=
 #DefaultLimitRTPRIO=
 #DefaultLimitRTTIME=
-#IPAddressAllow=
-#IPAddressDeny=
-