Fix memory leaks

:Release Notes:
Changed LSCall to LSCallOneReply during suspend,
charging and alarms activity.
Fix minor json cleanups.

:Detailed Notes:
LS2 call was used in wrong way. All calls are
'one time' calls and should use LSCallOneReply
instead of LSCall.

:Testing Performed:
MiniBAT

:QA Notes:

:Issues Addressed:
[GF-53065] powerd is leaking memory

Open-webOS-DCO-1.0-Signed-off-by: Alexandr Smoktal <alexandr.smoktal@lge.com>

Change-Id: I527c2a5b0e0222ec4710bda7da9e2eda63995c39
Reviewed-on: https://g2g.palm.com/4093
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Alexandr Smoktal <alexandr.smoktal@lge.com>
Tested-by: Alexandr Smoktal <alexandr.smoktal@lge.com>