Allow APEX versions in the OAT header to be overriden. am: 5045a8060a

Original change: https://android-review.googlesource.com/c/platform/art/+/3539980

Change-Id: I45c4c33a523b466856f8a0afa94f700be7b11482
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>