[rilmodem][WIP] Adding mapping for personalisation substate

In order to get rid of sporadical errorneous showing of phone lock
state as locked added more real personalisation substate mapping.
NOTE: in order to test this feature for good, we need a way to
manipulate modem lock states.

Signed-off-by: Jussi Kangas <jussi.kangas@oss.tieto.com>
Merge pull request #37 from jkangas/master

Request for pulling real personalisation lock state mapping to main branch