Explicitly link libz-host to libart.

A change in system/core/libziparchive will make libziparchive-host
depend on libz-host as a shared library instead of a static library.
As a result, only on MacOS, libziparchive-host will stop re-exporting
libz-host interface. Libart uses both and must link both.

Change-Id: Ie4ae9b27903cbcbdb2d2043969a7fceba32249be
1 file changed