[rilmodem] Support for handling SMS delivery reports

Using code from Simon Busch http://bazaar.launchpad.net/~morphis/phablet-extras/ofono-sms-status-report/revision/42
include/sim: introducing ofono_set_pin_lock_state
src/sim: implementing ofono_set_pin_lock_state
drivers/rilmodem: implementing pin lock status update
Merge pull request #50 from jpoutiai/master

updating pin lock states after ofono looses them
Offline mode support to oFono
Merge pull request #51 from leinomii/offline2

Offline mode support to oFono
[plugins] Signal SMS delivery status via D-Bus

Using code from ofono/examples.
Merge pull request #52 from marttipiirainen/sms_status

Signal SMS Status Reports