Updated toggles in Date and time settings page

Design doc: go/dd-android-settings-time-2024

Changes:
- toggling off "automatic time zone" now sets "use location" off and makes it unmodifiable
- removing "use locale default" for time format

Bug: 296835792
Test: on-device and atest
Flag: com.android.settings.flags.revamp_toggles
Change-Id: I31744f104fed06ee9980a6a0160501325175a02d