Update battery optimize page states condition

 - Keep apps optimize state as what it set even it's a system or default
   app
 - Previously we force system/defualt apps present as Unrestricted mode
   only and disable other options but that can not shows that apps
   actual optimize states, it's possible to be other states even it's a
   system or default apps, so we change the UI logic back to: present
   it's actual states and disable other options when it's a system or
   default apps.

Bug: 234419032
Test: make SettingsRoboTests
Change-Id: Ib5b6cb0aacb570cb8d15b1bb9ac2d480356eda49