debian/console-conf*.service: add core18 services as After deps
These are currently applied with hacks in the core18 repo when building the
core18 snap, but that was always meant to be a temporary thing until it was
upstreamed... here's the upstreaming.
debian/console-conf.*.service: run after snapd.recovery-chooser-trigger.service
On Core20 devices, the user may decice to invoke a recovery chooser by holding
down a specific key. Make sure that the recovery chooser trigger detection
service runs before, so that by the time console-conf runs, the trigger
detection window is closed and we may launch the chooser if needed.
Note, the patch only includes the bits for ensuring the correct order during
boot.
services: run console-conf after core18.start-snapd.service
On core18 the firstboot seeding happens via the core18.start-snapd
service. This service will do the initial start of snapd when the
system is unseeded. This service will wait until the system is
fully seeded.
We cannot run console-conf before that because it uses the "snap"
command which will not be available before the system is seeded.
