Make IMU work

CS2 was being used for the control panel.  Stop doing that.

Change-Id: I38b4ba0daf93598781c416db6ed921a2a883393c
diff --git a/y2020/wpilib_interface.cc b/y2020/wpilib_interface.cc
index 3a8b646..91182fc 100644
--- a/y2020/wpilib_interface.cc
+++ b/y2020/wpilib_interface.cc
@@ -501,7 +501,8 @@
     sensor_reader.set_left_accelerator_encoder(make_encoder(4));
     sensor_reader.set_right_accelerator_encoder(make_encoder(3));
 
-    sensor_reader.set_control_panel_encoder(make_encoder(8, frc::Encoder::k1X));
+    sensor_reader.set_control_panel_encoder(
+        make_unique<frc::Encoder>(5, 6, false, frc::Encoder::k1X));
 
     // Note: If ADIS16470 is plugged in directly to the roboRIO SPI port without
     // the Spartan Board, then trigger is on 26, reset 27, and chip select is