Merge "Prevent default wellbeing app from falling below WORKING_SET bucket" into rvc-qpr-dev am: 711cdc2220

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12663452

Change-Id: I5c85d31b5c42f4bbb7c33671d36120a6bcff5d80