Update drivetrain_lib_test to use y2016 stuff.

Change-Id: I02a0b4ab6758713339649019816ac7af5f441fb0
diff --git a/frc971/control_loops/drivetrain/BUILD b/frc971/control_loops/drivetrain/BUILD
index 369de78..ee1efdd 100644
--- a/frc971/control_loops/drivetrain/BUILD
+++ b/frc971/control_loops/drivetrain/BUILD
@@ -115,7 +115,7 @@
     '//frc971/control_loops:state_feedback_loop',
     '//frc971/queues:gyro',
     '//aos/common:queues',
-    '//y2014:constants',
-    '//y2014/control_loops/drivetrain:polydrivetrain_plants',
+    '//y2016:constants',
+    '//y2016/control_loops/drivetrain:polydrivetrain_plants',
   ],
 )