[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