Revert "Fixup! Disabled screenOffAnimation"

This reverts commit dfcf4b849e147f0c6aa23ed1945f258e1e232701.
Revert "Disabled screenOffAnimation"

This reverts commit 29080c0c9f4b45bb88e8c4aeef187e570876286c.

Conflicts:

	overlay/frameworks/base/core/res/res/values/config.xml

Change-Id: I439ee3b82fe88eadfd1492f9b6d8bec99b9bcca5