packages/disabled-services: added rauc-mark-good.service. ...

This is done to avoid marking a potentially bad rootfs good on the first boot. Buildroot invokes 'systemctlpreset-all' when finalizing the rootfs image, which would have the side effect of enabling the service. This is a very basic service for now, with no dependency checking of any kind, so this is as of yet, not a desirable thing.

packages/disabled-services: add systemd-bootchart.

Initial commit.