Like e.g. txa0cc00_center_frequency, rxa0cc00_center_frequency_earfcn, etc -
because different units needs to use different parameters.

cron_schedule is renamed to -> reset_schedule to better reflect its meaning.

user-authorized-key remains to be global as this is per-eNB nor per-RU
property, but is likely unneded in the future. Corresponding FIXME is added to
highlight this.

Backward compatibility: no change for ORS; lopcomm parameters become per-cell and need adaptation.