Add a bit to enable sandstorm mode.

2019 auto needs to flow into teleop regardless of the robot mode.  Add a
configuration bit to our base class so we can turn this mode on in 2019
and leave it off in past years.

Change-Id: I8759b3def1c0c055ec84b2b57bb7fe61e6b3c412
diff --git a/aos/input/action_joystick_input.cc b/aos/input/action_joystick_input.cc
index 991ea17..c2c3763 100644
--- a/aos/input/action_joystick_input.cc
+++ b/aos/input/action_joystick_input.cc
@@ -22,7 +22,7 @@
     }
   }
 
-  if (!auto_running_) {
+  if (!auto_running_ || (run_teleop_in_auto_ && !action_queue_.Running())) {
     if (!data.GetControlBit(ControlBit::kEnabled)) {
       action_queue_.CancelAllActions();
       LOG(DEBUG, "Canceling\n");