Add One Lock settings inside private space settings page

This includes below changes:
1. Add new sub settings page in Private Space settings with option to
   swithch between private profile lock and device screen lock
2. Call Private profile lock setup when swithcing to private lock from
   screen lock.
3. Preference to change private lock when a separate Private lock is set

Bug: 308862923
Test: atest UseOneLockPreferenceControllerTest,
PrivateSpaceLockControllerTest

Change-Id: I0a6d8c7dfbd0ffea19db03ffd6dfe7aa520c9684