Add additional folders to look for roles/service

:Release Notes:
Add additional folders to look for third-party's roles and services

:Detailed Notes:

:Testing Performed:
Project was built several times to ensure that new variables affects configuration files

:QA Notes:

:Issues Addressed:
[GF-38331] Luna-service must also search /var/palm/ls2-dev for roles and services

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

Change-Id: Ic07a79846341847bca4f5086bccd4e3e3657456f
Reviewed-on: https://g2g.palm.com/3560
Reviewed-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>
Tested-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>