Merge "Allow setting future api level before REL" am: 52fdcf54

Original change: https://android-review.googlesource.com/c/platform/build/+/2527081



Change-Id: I71f5e276257d16b1df32d762599d13a9f97f24aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>