Fix incorrect high/low gear in joystick

Change-Id: I77710d2935a3e0a1d8a97da9ccbc21fa171ab31d
diff --git a/y2015/joystick_reader.cc b/y2015/joystick_reader.cc
index f949c1a..4b5ced8 100644
--- a/y2015/joystick_reader.cc
+++ b/y2015/joystick_reader.cc
@@ -65,7 +65,7 @@
 constexpr actors::ProfileParams kElevatorMove{0.3, 1.0};
 
 const JoystickAxis kSteeringWheel(1, 1), kDriveThrottle(2, 2);
-const ButtonLocation kShiftHigh(2, 1), kShiftLow(2, 3);
+const ButtonLocation kShiftHigh(2, 3), kShiftLow(2, 1);
 const ButtonLocation kQuickTurn(1, 5);
 
 //const ButtonLocation kClawClosed(3, 5);