Make drivetrain_lib_test_bot3 actually link...

Change-Id: Ia9a353dc4988de8961699a56d6c4165574b31af3
diff --git a/bot3/control_loops/drivetrain/drivetrain.gyp b/bot3/control_loops/drivetrain/drivetrain.gyp
index 7910a27..92678d1 100644
--- a/bot3/control_loops/drivetrain/drivetrain.gyp
+++ b/bot3/control_loops/drivetrain/drivetrain.gyp
@@ -86,6 +86,7 @@
         '<(DEPTH)/frc971/control_loops/control_loops.gyp:state_feedback_loop',
         '<(DEPTH)/frc971/queues/queues.gyp:gyro',
         '<(AOS)/common/common.gyp:queues',
+        '<(AOS)/common/network/network.gyp:team_number',
       ],
     },
     {