Functional groupings parameters has max size of 24

[conlain-k]

Bug Report

Core currently has a hardcoded max of 24 parameters per functional groupings in its policy table update code. Since there are more than 24 types of vehicle data, this presents the possibility of a perfectly fine policy table being marked invalid on the grounds. This is caused by the policy_table_interface_ext.xml files having a maxsize="24" in the Parameters typedef.

Reproduction Steps

1. build SDL core in debug
2. connect with policy server that has functional group with more than 24 parameters
3. Force OnSystemRequest by connecting app

Expected Behavior

Core accepts policy table and uses it correctly

Observed Behavior

Core sees policy table as invalid and throws it out

OS & Version Information

• OS/Version: Ubuntu 18.04
• SDL Core Version: full app id branch Feature/full app ID #2407
• Testing Against: rpcbuilder built with android full app id branch Feature/issue 738 - Support for Short and Full UUID App ID sdl_java_suite#802, policy server with 25 parameters in a functional group GetVehicleData rpc

Test Case, Sample Code, and / or Example App

DEBUG [30 Jul 2018 13:35:00,193][0x7f4052ffd700][Policy] /home/conlain/programs/sdl_core/src/components/policy/policy_regular/src/policy_manager_impl.cc:820 PolicyManagerImpl::IsPTValid: Errors: policy_table.policy_table.functional_groupings["DrivingCharacteristics-3"].rpcs["GetVehicleData"].parameters: array has invalid size