Move aos/input and aos/robot_state to frc971/input

Neither folder makes any sense as part of aos/.

Change-Id: I10e0532da4e688c18a9354012b783c43566fd2a1
diff --git a/frc971/wpilib/sensor_reader.h b/frc971/wpilib/sensor_reader.h
index 39b83fa..8efdf75 100644
--- a/frc971/wpilib/sensor_reader.h
+++ b/frc971/wpilib/sensor_reader.h
@@ -6,10 +6,10 @@
 
 #include "aos/events/event_loop.h"
 #include "aos/events/shm_event_loop.h"
-#include "aos/robot_state/robot_state_generated.h"
 #include "aos/stl_mutex/stl_mutex.h"
 #include "aos/time/time.h"
 #include "frc971/control_loops/control_loops_generated.h"
+#include "frc971/input/robot_state_generated.h"
 #include "frc971/wpilib/ahal/DigitalGlitchFilter.h"
 #include "frc971/wpilib/ahal/DigitalInput.h"
 #include "frc971/wpilib/ahal/DriverStation.h"