[SettingsProvider] Auto disable ringtone sync

Disable the SYNC_PARENT_SOUNDS setting if a work profile ringtone is set

Test: cts-tradefed --test com.android.cts.devicepolicy.ManagedProfileTest
Bug: 30658854
Change-Id: I172f5396b47f03ac8afa365db0ec90f3a2dd0e29
3 files changed