Merge "Allow BAL for HeavyWeightSwitcher." into udc-dev am: 8d5e2b90 am: 11683f7c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23060590



Change-Id: I03c2d3e297001180a446856a6617596bb7d0c0ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>