Select stub/impl per apex variant am: 6d4d9da4 am: fae0900f am: dabcf225...

Select stub/impl per apex variant am: 6d4d9da4 am: fae0900f am: dabcf225 am: c8def075 am: 8affb4f3 am: b4f7e1d0

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2549671



Change-Id: Id94190e7baca10be9eb5c00173047bfd6460eed4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>