meta-webos: luna-service2=168 powerd=24

:Release Notes:
Remove memory leakage in ls-hubd, powerd.

:Detailed Notes:
luna-service2:
2437352 Destroy GSource object after detaching from loop

powerd:
ff2e548 Fix memory leaks.

:Testing Performed:
miniBAT

:QA Notes:

:Issues Addressed:
[GF-53002] ls-hubd is leaking memory
[GF-53065] powerd is leaking memory
[GF-53646] CCC: luna-service2=168 powerd=24

Open-webOS-DCO-1.0-Signed-off-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>

Change-Id: Ic737e413429e046be6990cb4018bc5e0b841ab09
Reviewed-on: https://g2g.palm.com/4094
Reviewed-by: DCO Verification
Build: Alexandr Smoktal <alexandr.smoktal@lge.com>
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Alexandr Smoktal <alexandr.smoktal@lge.com>
Tested-by: Alexandr Smoktal <alexandr.smoktal@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>