[nettime] Prefer CLOCK_BOOTTIME over CLOCK_MONOTONIC

The CLOCK_MONOTONIC might get frozen during suspend.
CLOCK_BOOTTIME does not have this problem and should be used
when available.
[rilmodem] Queue DTMF requests in driver

Signed-off-by: Martti Piirainen <martti.piirainen@oss.tieto.com>
Merge pull request #108 from pgerdt/use-clock-boottime

[nettime] Prefer CLOCK_BOOTTIME over CLOCK_MONOTONIC
Merge pull request #109 from marttipiirainen/dtmf_queue

[rilmodem] Queue DTMF requests in driver
[smsutil] Allow partial conversion of UCS2 SMS

Signed-off-by: Martti Piirainen <martti.piirainen@oss.tieto.com>
Merge pull request #111 from marttipiirainen/sms_retry_conversion

[smsutil] Allow partial conversion of UCS2 SMS
[smsutil] Improve conversion of incoming UCS2 SMS to UTF-8

By this change characters found from incoming UCS2 SMS which are not part
of UTF-8 character set are passed to message manager API client as
Unicode escape characters (\uxxxx or \Uxxxxyyyy). The decoding codeset
has been changed from UCS-2BE to UTF-16BE as UTF-16 allows surrogates
(the use of two characters/four bytes to make one codepoint).

Signed-off-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
Merge pull request #112 from ptakalok/master

[smsutil] Improve conversion of incoming UCS2 SMS to UTF-8
OemRaw interface and rilplugin implementation

Signed-off-by: Tommi Kenakkala <tommi.kenakkala@oss.tieto.com>