Merge "DeviceProfile.overviewRowSpacing should exclude extra top margin on grid tasks" into sc-v2-dev am: 953873dd18 am: a370c8880f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16440097

Change-Id: I5ce9a676cd30790b89a5a63ffbbc390c602f7f7e