Use rotation animation for visible wallpaper rotation

Although the activity may show in next rotation directly,
the wallpaper was shown in different orientation. If there
is no animation to cover the change, there will be obvious
jump cut that looks flickering.

Bug: 187149609
Test: 1. Enable launcher rotation and auto rotation
      2. Put device in landscape
      3. Lock and unlock screen
      There will be a rotation animation.
Change-Id: I5048d0c7597cdc5c9a84fa4a3b7d6feea80892ee