Add hidden API to clear all cross-profile app-ops

Reset the INTERACT_ACROSS_PROFILES app-op for all apps on the device
when creating a new work profile. This ensures that user grants for
previous work profiles (perhaps with a different admin) are not saved
and also not restored with backup-and-restore.

Also, clear the shared preference storing which oem-whitelisted apps the
user has granted. This ensures that the user sees them all again
during work profile provisioning.

Fixes: 151145623
Test: atest com.android.managedprovisioning.task.CreateManagedProfileTaskRoboTest
Change-Id: I5f5c5aea1c36bd17a74c02e1b6fa9b4047f15003