tzdata: run tz-data.service early

... earlier as possible. and tmpfiles.service is a bitch!

TODO: carefuly (re)order all OE specific services for 5.0

packages/sysutils/timezone-data/system.d/tz-data.service

@@ -1,14 +1,17 @@
 [Unit]
 Description=Setup Timezone data
-Before=xbmc.service
+DefaultDependencies=no
+Before=systemd-udevd.service
+After=var.mount
 
 [Service]
 Type=oneshot
 Environment=TIMEZONE=UTC
 EnvironmentFile=-/storage/.cache/timezone
+ExecStartPre=/bin/mkdir -p /var/run
 ExecStart=/bin/ln -sf /usr/share/zoneinfo/${TIMEZONE} /var/run/localtime
 RemainAfterExit=yes
 StartLimitInterval=0
 
 [Install]
-WantedBy=basic.target
+WantedBy=sysinit.target