Adds accessibility actions for magnification switch button to move layout...

Adds accessibility actions for magnification switch button to move layout position am: f142b5a3 am: e1a613ad am: e4ac0f01

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14781659

Change-Id: Id8b964b5de9188b88d56cbdea2ae6874d40d02e8