ART: Fix oat_test for 64b
ART: Fix oat_test for 64b

The QuickEntryPoints structure has a size dependent on the pointer
size.

Change-Id: I369353200430a6ccaccded7589105312fd411b97

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