Upgraded //y2015 to use the common drive code.

This is a fixup from changing the call signature of DoCoerceGoal

Change-Id: I8536f4cd793370cec8d369a00e4fc34b35442fd3
diff --git a/y2015/control_loops/drivetrain/drivetrain_base.h b/y2015/control_loops/drivetrain/drivetrain_base.h
new file mode 100644
index 0000000..530e56e
--- /dev/null
+++ b/y2015/control_loops/drivetrain/drivetrain_base.h
@@ -0,0 +1,17 @@
+#ifndef Y2015_CONTROL_LOOPS_DRIVETRAIN_DRIVETRAIN_BASE_H_
+#define Y2015_CONTROL_LOOPS_DRIVETRAIN_DRIVETRAIN_BASE_H_
+
+#include "frc971/control_loops/drivetrain/drivetrain_config.h"
+
+namespace y2015 {
+namespace control_loops {
+namespace drivetrain {
+
+const ::frc971::control_loops::drivetrain::DrivetrainConfig &
+GetDrivetrainConfig();
+
+}  // namespace drivetrain
+}  // namespace control_loops
+}  // namespace y2015
+
+#endif  // Y2015_CONTROL_LOOPS_DRIVETRAIN_DRIVETRAIN_BASE_H_