Merge "Add bottom offset to empty state screens for chooser" into rvc-dev am: 3b31c14e am: f03fafc7 am: d9b47e05

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11623666

Change-Id: I717c67f6bf7cf9a83d18c3d12f362f1f1f7df09b