Add ART run-tests to the Mainline Test Suite (MTS).

Note: For simplicity, all ART run-tests supported at the build level
are included in MTS, even ones which are currently known to fail at
run-time -- we can filter the tests to execute at the test plan level
if needed.

Test: Run `m mts` and check the contents of the MTS package
      (`out/host/linux-x86/mts/android-mts.zip`)
Bug: 167385698
Change-Id: I47013a92cdda0dd7f819eca6e644a4cb2b3c2ca5
1 file changed