Use isCredentialSharedWithParent in LockSettingsService

Created property isCredentialSharedWithParent in UserTypeDetails which
is true for managed and clone profiles. This is used in
LockSettingsService for sharing the locking credentials with its parent
user.

Bug: 214355283
Test: atest android.multiuser.cts.UserManagerTest
Test: atest LockSettingsServiceTests

Change-Id: I6ceaf498aadce7e713b20a4d24e4a29e812eb0ca