Merge "Configure 720dp split shade similar to 600dp" into sc-v2-dev am: 635fef18d6 am: fb9296fa7c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16015599

Change-Id: I9b0d0b89b3c1a9c12fece9d61603e18d2a88c82e