[voicecall] Fix compiler warnings

Fix 'unused variable' compiler warnings introduced by commit 6aafbe93744b366518fe5cd69661d5998ae70958.

Signed-off-by: Martti Piirainen <martti.piirainen@oss.tieto.com>
Merge pull request #141 from marttipiirainen/next

[voicecall] Fix compiler warnings
[rilmodem] check that received numeric value is valid

Existing numeric value with invalid content seems to be able to
cause dbus crash. This fix prevents the sending if the value does
not match with ril specification.

Signed-off-by: Jussi Kangas <jussi.kangas@oss.tieto.com>
[provision] Fix merge error

Signed-off-by: Martti Piirainen <martti.piirainen@oss.tieto.com>
Revert "[rilmodem] Make LTE configuration forcing working both ways"

This reverts commit 7d8c819d6b2d11acab365a0b9a1eb8f1c586adb7.
[rilmodem] Add initial SIM ATK support

Add initial SIM ATK implementation to rilmodem driver, supporting
proactive command, terminal response and envelope.

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
[rilmodem] Fix proactive command and terminal response handling

Convert the proactive commands and terminal responses to correct
format

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
[rilmodem] Fix for envelope sending

Fix typo in envelope sending causing ofono crash

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
[rilmodem] stk: adjust timings

Adjust the registeration of the rilmodem stk service and usage of timer
when reporting to RIL when ready to receive proactive commands

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
[rilmodem] Fix for terminal response and envelope construction

Remove usage of strlen, so the terminal responses and envelopes ending
with value 0x00 are sent properly.

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
[rilmodem] Remove timer usage from start up sequence

Remove usage of timers in startup sequence. Report ofono readiness to
receive proactive commands only when agent has registered.

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>