Merge "Pre-set splash screen as icon-style when launch activity from Launcher." into sc-dev am: c3db44bbce am: 7d76519c1f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14773251

Change-Id: I0d8255797dc1611c85e8cc5d16f9b59aab9b9fc5