Protect Device Identifiers behind priv permission and DO/PO checks

Bug: 110099294
Test: cts-tradefed run cts -m CtsDevicePolicyManagerTestCases \
      -t com.android.cts.devicepolicy.DeviceOwnerTest.testDeviceOwnerCanGetDeviceIdentifiers
Test: cts-tradefed run cts -m CtsDevicePolicyManagerTestCases \
      -t com.android.cts.devicepolicy.ManagedProfileTest#testGetDeviceIdentifiers
Test: cts-tradefed run cts -m CtsTelephonyTestCases -t android.telephony.cts.TelephonyManagerTest
Test: cts-tradefed run cts -m CtsPermissionTestCases -t android.permission.cts.TelephonyManagerPermissionTest

Change-Id: I203ba3bd85c3015cb3041e85e59f3b6ddfe52922