Allow DPM.wipeData() to be called by apps holding MASTER_CLEAR.

Test: manual verification using KitchenSink on automotive, which has the
      permission and calls DevicePolicyManager.wipeData() without being
      a DPC.

Fixes: 174675990
Bug: 171803907

Change-Id: I01926fc108254a37febf630611234235074e9247