Update the categorize rule for system and app item bucket

Add a config to control different design concept in the chart 1) put all apps with system UID and system components (e.g. bluetooth, display, wifi ... etc) into the system bucket or 2) separate them into two different bucket (app & system bucket) in the chart UI for better experimental testing

Bug: 202118250
Test: make RunSettingsRoboTests
Change-Id: Id6f7c07d96ad8a365e7405160a5248c57a5a008d