Enable multi-user

Change-Id: I0fc50fc6a7436f7725f6200aa5e95ae208b63177
Enable WFD

Change-Id: Id903a636930c6b1010091da44b749e0181ee6ea1
Add hardware tunables to Settings

Make kcal and tap-to-wake configurable

Change-Id: Id96df99bf715f6b2ec8f5e005ce2f1a3bfae44d1
Revert "Add hardware tunables to Settings"

This reverts commit ac317de88144c3e6629c0389234fe9b1287421fa.