feb10e7629
In case some mounts are present for systems out of the box, it might be still important to apply overrides for it, like custom options. For that we add new `mount_overrides_only` key to `systemd_mounts` mapping, alike to how it is already done for networkd and serviced. Change-Id: Ib421508cd76147cb314a579a2b4e918604cf3652 Signed-off-by: Dmitriy Rabotyagov <dmitriy.rabotyagov@cleura.com>