ART: Fix target run-tests to build architecture directories
ART: Fix target run-tests to build architecture directories

The recent dalvik-cache layout changes require the tests to create
the right directories, as ART does not auto-create outside of /tmp

(cherry picked from commit 335438a512d016bb0e582304c0a6a1ad510bcc47)

Change-Id: Ie9045cc34be8b2f106fdec4f3bf37ad830637756

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst