Merge "Fix heads up notification corner roundness" into sc-dev am: e74cc356 am: d0bd82d5 am: aeff61b1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14633970

Change-Id: Id3fa1568268b4ce0cd8f76e2938b33cfc61dfbdc