700c113218
Autobrightness preference controller was accidentally removed from display_settings.xml. Given that no tests were broken and this would be a disaster for phone buddy & inline actions, I have added another test which keeps a list of valid controllers that should exist in xml. When more inline controllers types are added, they will be included in this test. Fixes: 72564979 Test: robotests Change-Id: I40fe18f9118af9cec1c201632742d2949ff64be5