webos-image: filecache=63

:Release Notes:
Fix minor issues detected by cppcheck
Fix parameter validation in InsertCacheObject

:Detailed Notes:
submissions/62..submissions/63
7ba8607 Fix InsertCacheObject parameters validation
50b8d49 Fix cppcheck issues

:Testing Performed:
Mini BAT

:QA Notes:

:Issues Addressed:
[ANG-370] Filecache: invalid params issue regarding of InsertCacheObject
[ANG-854] filecache: Investigate and fix issues detected by cppcheck
[ANG-2104] CCC: filecache=63

Open-webOS-DCO-1.0-Signed-off-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>

Change-Id: I1926dff6edd3b841b29adf53e254785a431fef6e
Reviewed-on: https://g2g.palm.com/4745
Reviewed-by: DCO Verification
Build: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Tested-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Alexander Irhin <alexander.irhin@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>