Move aos/controls to frc971/control_loops

Also put what was aos/controls/control_loops.fbs in y2012/control_loops
because that's the only user.

Change-Id: I8f402b0708103077e135a41e55ef5e4f23681d87
Signed-off-by: James Kuszmaul <jabukuszmaul@gmail.com>
diff --git a/y2017/control_loops/superstructure/shooter/BUILD b/y2017/control_loops/superstructure/shooter/BUILD
index 49fa341..cb351c9 100644
--- a/y2017/control_loops/superstructure/shooter/BUILD
+++ b/y2017/control_loops/superstructure/shooter/BUILD
@@ -45,7 +45,7 @@
     visibility = ["//visibility:public"],
     deps = [
         ":shooter_plants",
-        "//aos/controls:control_loop",
+        "//frc971/control_loops:control_loop",
         "//frc971/control_loops:control_loops_fbs",
         "//frc971/control_loops:profiled_subsystem_fbs",
         "//y2017/control_loops/superstructure:superstructure_goal_fbs",
diff --git a/y2017/control_loops/superstructure/shooter/shooter.cc b/y2017/control_loops/superstructure/shooter/shooter.cc
index 0ea4836..8a2dcb9 100644
--- a/y2017/control_loops/superstructure/shooter/shooter.cc
+++ b/y2017/control_loops/superstructure/shooter/shooter.cc
@@ -130,7 +130,7 @@
 
   wheel_.set_position(position);
 
-  chrono::nanoseconds dt = ::aos::controls::kLoopFrequency;
+  chrono::nanoseconds dt = ::frc971::controls::kLoopFrequency;
   if (last_time_ != ::aos::monotonic_clock::min_time) {
     dt = position_time - last_time_;
   }
diff --git a/y2017/control_loops/superstructure/shooter/shooter.h b/y2017/control_loops/superstructure/shooter/shooter.h
index 19fc7dd..afb627d 100644
--- a/y2017/control_loops/superstructure/shooter/shooter.h
+++ b/y2017/control_loops/superstructure/shooter/shooter.h
@@ -4,7 +4,7 @@
 #include <array>
 #include <memory>
 
-#include "aos/controls/control_loop.h"
+#include "frc971/control_loops/control_loop.h"
 #include "aos/time/time.h"
 #include "frc971/control_loops/state_feedback_loop.h"
 #include "Eigen/Dense"