Add READ ONLY flags for caching Profiles data

Flags for adding caching methods:
- getProfileParent
- getProfileIds
- getProfiles
- getProfileType

Change-Id: I7d72563fd746c9838e1dea50d82849915ae6fa77
Test: N/A
Flag: android.multiuser.cache_profile_ids_read_only
Flag: android.multiuser.cache_profile_type_read_only
Flag: android.multiuser.cache_profiles_read_only
Flag: android.multiuser.cache_profile_parent_read_only
Bug: 350417399
Bug: 350421409
Bug: 350417403
Bug: 350419395