Merge "Zoom-in wallpaper instead of zoom-out when unfolding" into sc-v2-dev...

Merge "Zoom-in wallpaper instead of zoom-out when unfolding" into sc-v2-dev am: 50583cd3 am: 59bd397a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16058127

Change-Id: I0ea1096a654698381fc98450c9732742ebc2b369