tmpfiles: stop complaining about autofs on not-found paths

systemd-tmpfiles[328]: Failed to determine whether '/run/cryptsetup' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/etc/resolv.conf' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/lock/subsys' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/setrans' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/console' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/faillock' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/sepermit' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/motd.d' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/motd.d' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/motd' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/run/nologin' is below autofs, ignoring: No such file or directory
systemd-tmpfiles[328]: Failed to determine whether '/var/lib/systemd/pstore' is below autofs, ignoring: No such file or directory
... and so on and so on.

(cherry picked from commit 16eff827)