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/wpilib_interface.h b/frc971/wpilib/wpilib_interface.h
index 104ab84..8ab92ef 100644
--- a/frc971/wpilib/wpilib_interface.h
+++ b/frc971/wpilib/wpilib_interface.h
@@ -4,7 +4,7 @@
 #include <stdint.h>
 
 #include "aos/events/event_loop.h"
-#include "aos/robot_state/robot_state_generated.h"
+#include "frc971/input/robot_state_generated.h"
 
 namespace frc971 {
 namespace wpilib {