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

Change-Id: I716b13b2ec47569dd2465d0caadd316c0219a803

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