Merge "Warn when running activity from 32 bit app on 64 bit devices." into...

Merge "Warn when running activity from 32 bit app on 64 bit devices." into udc-dev am: bf11cb24 am: 80f39ff9 am: bd3c1197

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23320254



Change-Id: I675a0d27a9ffb410f97032056a48e171126c971b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>