aos/common/{control_loop=>controls} and moved polytope.h into it
diff --git a/frc971/control_loops/drivetrain/drivetrain.gyp b/frc971/control_loops/drivetrain/drivetrain.gyp
index bf73d9f..339e01e 100644
--- a/frc971/control_loops/drivetrain/drivetrain.gyp
+++ b/frc971/control_loops/drivetrain/drivetrain.gyp
@@ -42,7 +42,7 @@
         'drivetrain_loop',
         '<(AOS)/common/common.gyp:controls',
         '<(DEPTH)/frc971/frc971.gyp:constants',
-        '<(DEPTH)/aos/build/externals.gyp:libcdd',
+        '<(AOS)/common/controls/controls.gyp:polytope',
         '<(DEPTH)/frc971/control_loops/control_loops.gyp:state_feedback_loop',
         '<(DEPTH)/frc971/control_loops/control_loops.gyp:coerce_goal',
         '<(DEPTH)/frc971/queues/queues.gyp:queues',
@@ -51,7 +51,7 @@
         '<(AOS)/common/logging/logging.gyp:matrix_logging',
       ],
       'export_dependent_settings': [
-        '<(DEPTH)/aos/build/externals.gyp:libcdd',
+        '<(AOS)/common/controls/controls.gyp:polytope',
         '<(DEPTH)/frc971/control_loops/control_loops.gyp:state_feedback_loop',
         '<(DEPTH)/frc971/control_loops/control_loops.gyp:coerce_goal',
         '<(AOS)/common/common.gyp:controls',