Reorder ART's `OWNERS` file. am: 3f93ffb13b am: a176ef5f8b am: 11c6bfa48a

Original change: https://android-review.googlesource.com/c/platform/art/+/2311866

Change-Id: I8665095af1bc302c583599fa38a00c09943b6d77
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>