Put a plant inside the loop and moved A,B,etc there.

Change-Id: I9cb3a1a16bd0ccda0c9287514577b3c3861bc42f
diff --git a/frc971/control_loops/profiled_subsystem.h b/frc971/control_loops/profiled_subsystem.h
index 031795a..91e7ae7 100644
--- a/frc971/control_loops/profiled_subsystem.h
+++ b/frc971/control_loops/profiled_subsystem.h
@@ -60,7 +60,7 @@
     return *loop_;
   }
 
-  int controller_index() const { return loop_->controller_index(); }
+  int controller_index() const { return loop_->index(); }
 
   // Returns whether the estimators have been initialized and zeroed.
   bool initialized() const { return initialized_; }