Use OatFileAssistant default filter instead of the dex2oat one

Ensure that when OatFileAssistant needs to generate oat files it uses
its default filter (quicken) instead of the one from dex2oat (speed).

Bug: 38442248
Test: m test-art-host
Change-Id: I6071d3b76063ad719e3fe372b4dc9f5a4881d3a8
4 files changed