SDL does not respond to SDL.GetListOfPermission with appId in case there are no specific permissions for the app

[GetmanetsIrina]

Bug Report

SDL does not respond to SDL.GetListOfPermission with appId in case there are no specific permissions for the app

Reproduction Steps

1. SDL with external_proprietary policies and HMI are started
2. Mobile app is registered and activated
3. There are no specific permissions for the app
4. PTU is not performed or performed without specific permissions for the mobile app
5. Go to HMI settings-> App permissions - > \<app name>
6. HMI requests {"jsonrpc":"2.0","id":<n>,"method":"SDL.GetListOfPermissions","params":{"appID":<app_id>}}

Expected Behavior

SDL responds with {"id":<n>,"jsonrpc":"2.0","result":{"allowedFunctions":[],"code":0,"externalConsentStatus":[],"method":"SDL.GetListOfPermissions"}}

Observed Behavior

SDL does not respond to SDL.GetListOfPermissions request

OS & Version Information

• OS/Version: Ubuntu 18.04
• SDL Core Version: https://github.com/smartdevicelink/sdl_core/commit/54246454776513b68161258b46299b48e4352f3f
• Testing Against: HMI: https://github.com/smartdevicelink/sdl_hmi/commit/931877cb68e56522d9f6db1d6c5751decf6c988e, SPT: 20201007

SDL log

SDL_log_no_response_to_GetListOfPermissions.zip

[LitvinenkoIra]

@VadymLuchko is working on it

[jacobkeeler]

Closing with the merge of #3627