Move minSteerSpeed to base interface

selfdrive/car/hyundai/interface.py

@@ -28,8 +28,6 @@ class CarInterface(CarInterfaceBase):
     ret.steerLimitTimer = 0.4
     tire_stiffness_factor = 1.
 
-    ret.minSteerSpeed = 0.
-
     if candidate == CAR.SANTA_FE:
       ret.lateralTuning.pid.kf = 0.00005
       ret.mass = 3982. * CV.LB_TO_KG + STD_CARGO_KG

selfdrive/car/interfaces.py

@@ -50,6 +50,7 @@ class CarInterfaceBase():
     ret.steerControlType = car.CarParams.SteerControlType.torque
     ret.steerMaxBP = [0.]
     ret.steerMaxV = [1.]
+    ret.minSteerSpeed = 0.
 
     # stock ACC by default
     ret.enableCruise = True