Merge "Revert "Suppress app transition while recents is running"" into tm-dev...

Merge "Revert "Suppress app transition while recents is running"" into tm-dev am: d2303d97 am: 402a27b2 am: cb76d1d2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18204686



Change-Id: I06242f8011e35acc373c34727bbda2333e7fea53
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>