Merge "Make the pending top UID's adj value slightly better than FOREGROUND_APP_ADJ." into rvc-dev am: e58fb44af5 am: bc108bcdb2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12133296

Change-Id: I9a7f4c8c8c1cf4a8486513fe19e4dc9dacdcfb33