Send query service categories

:Release Notes:

:Detailed Notes:

:Testing Performed:
make test

:QA Notes:

:Issues Addressed:
[BHV-1252] Add 2-step ls2 bus registration APIs

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

Change-Id: Ied5e3309b94dca0f8ebc7cb0c008e0ba377317db
Reviewed-on: https://g2g.palm.com/5285
Reviewed-by: DCO Verification
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Tested-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>