Merge "Add appcompat system properties flag to soong" into main am: 83f8fb16 am: 28137801

Original change: https://android-review.googlesource.com/c/platform/build/+/3047844



Change-Id: Ice4959a5c518b340e30972e5a071d22c7e17a6e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>