Migrate setPermittedInputMethods to policy engine

Bug: 251401809
Bug: 273494642
Test: btest android.devicepolicy.cts.DeviceManagementCoexistenceTest
Test: atest OrgOwnedProfileOwnerTest#testPermittedInputMethods
Test: atest MixedProfileOwnerTest#testPermittedInputMethods
Test: atest MixedDeviceOwnerTest#testPermittedInputMethods
Change-Id: Ia608bddd5b46bc5708957422d29d0de545a771a5
6 files changed