Change Dex2oatLayoutTest to generate profile itself.

Changed from a pre-generated base64 profile. This makes the test work
even if the dex file differs due to Jack changes.

Bug: 33091768
Test: mm test-art-host-gtest-dex2oat_test

Change-Id: I22b8c20ae1ab57efe66684ba38f5c128e6c089fd
2 files changed