1. Since adb is restarted on user switch it makes no sense to
try to reconnect the ui automation service since it will
be killed on a user switch.
Disabling touch exploration on UI automation service
connect since it can explicitly put the device in this
state if needed.
bug:6967373
Change-Id: I8cfde74f28f3f03d4ccf24746d43b8178ae2b5ef