Record timezone_service in compat infra.

Commit: 50889ce0 added policy for a
new service, which was not present in O.  This policy introduced a
new type.  Record it as such.

Bug: 62573845
Test: None, prebuilt change only.
Change-Id: If9cfaff813c47d3b1c8374e8abfb4aedb902d486