Bootstrapping a system with D-Bus using Finit will create the machine-id
file /var/lib/dbus/machine-id, this can be used as the unique machine-id
for services like RAUC, so let's set that as /etc/machine-id to reduce
the log spam we get otherwise:
Nov 7 06:18:08 test-05-25-f8 rauc[5512]: Failed to get machine-id: Failed to open file <E2>M-^@M-^\/etc/machine-id<E2>M-^@M-^]: No such file or directory
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
