Add domains for goldfish services.

goldfish-setup, goldfish-logcat, and qemu-props are goldfish-specific
oneshot services that lacked domain definitions and thus were left in init's
domain.

This depends on a change to external/sepolicy with the same Change-Id
to define non-goldfish-specific types for properties and logcat.

Change-Id: Idce1fb5ed9680af84788ae69a5ace684c6663974
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>