Merge "Update device paddings to spec." into sc-dev am: 920b6e7ffd am: 783a577b4a am: 41f7e4921c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14757163

Change-Id: I30fb49f9a6bba7f79fa3238fd937857e658cc554