Switch trajectory_plot to 2019 drive base.

Change-Id: I1135647bfb82c52f978cf6d374bec88a9504e45e
diff --git a/frc971/control_loops/drivetrain/BUILD b/frc971/control_loops/drivetrain/BUILD
index d3ed728..1480e4e 100644
--- a/frc971/control_loops/drivetrain/BUILD
+++ b/frc971/control_loops/drivetrain/BUILD
@@ -499,7 +499,7 @@
         "//aos/network:team_number",
         "//third_party/eigen",
         "//third_party/matplotlib-cpp",
-        "//y2016/control_loops/drivetrain:drivetrain_base",
+        "//y2019/control_loops/drivetrain:drivetrain_base",
         "@com_github_gflags_gflags//:gflags",
     ],
 )