update manual time on switching off useNetworkTime

:Release Notes:
Fix issue exposed on next boot after switching off automatic time
synchronization without changing the time.

:Detailed Notes:
- sync manual time with system on switching off useNetworkTime

:Testing Performed:
- set "useNetworkTime" to true
- get system time automatically synced (ex. NTP)
- set "useNetworkTime" to false (without changing time)
- re-boot
- "restore" time from "micom" time-source
- verify that system time being synchronized and "lastSystemTimeSource"
  contains "manual"

:QA Notes:

:Issues Addressed:
[BHV-11126] LSS should update manual time on switching off useNetworkTime

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>

Change-Id: I88f172fb2a7fdd3bb1e676fca7275b682714ca27
Reviewed-on: https://g2g.palm.com/6118
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Tested-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Merge branch 'develop'

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>