Fix detected defects from static analysis

:Release Notes:
Fix detected defects from static analysis

:Detailed Notes:
53793 Uninitialized pointer field

:Testing Performed:
tested on build

:QA Notes:

:Issues Addressed:
[GF-56731] Fix coverity issues in the db8 component

Open-webOS-DCO-1.0-Signed-off-by: Igor Kuksyuk <igor.kuksiuk@lge.com>

Change-Id: I3fd3fce39d07398c8acb0b3173bf94be8fc07514
Reviewed-on: https://g2g.palm.com/4282
Reviewed-by: DCO Verification
Reviewed-by: Igor Kuksyuk <igor.kuksiuk@lge.com>
Tested-by: Igor Kuksyuk <igor.kuksiuk@lge.com>
Reviewed-by: Maksym Sditanov <maxim.sditanov@lge.com>
Tested-by: Maksym Sditanov <maxim.sditanov@lge.com>