Merge "Release SurfaceControlViewHost used to render wallpaper surface we are done" into ub-launcher3-master am: 5417619720 am: 279f923718

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker2/+/11871448

Change-Id: I0e79bd34fb36aa66189187fa26e15b56f57a17a3