Honda HR-V: set standstill (#22009)

* fix apparent Honda HR-V bugs

  * CarState.standstill was not set
  * CarState.gas was not derived from GAS_PEDAL/CAR_GAS

* revert gas change

Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>

selfdrive/car/honda/carstate.py

@@ -163,12 +163,8 @@ def get_can_signals(CP, gearbox_msg="GEARBOX"):
       ("GAS_PEDAL_2", 100),
     ]
   elif CP.carFingerprint == CAR.HRV:
-    signals += [("CAR_GAS", "GAS_PEDAL", 0),
+    signals += [("MAIN_ON", "SCM_BUTTONS", 0),
-                ("MAIN_ON", "SCM_BUTTONS", 0),
                 ("BRAKE_HOLD_ACTIVE", "VSA_STATUS", 0)]
-    checks += [
-      ("GAS_PEDAL", 100),
-    ]
   elif CP.carFingerprint == CAR.ODYSSEY:
     signals += [("MAIN_ON", "SCM_FEEDBACK", 0),
                 ("EPB_STATE", "EPB_STATUS", 0)]
@@ -237,6 +233,7 @@ class CarState(CarStateBase):
       ret.standstill = cp.vl["ENGINE_DATA"]["XMISSION_SPEED"] < 0.1
       ret.doorOpen = bool(cp.vl["SCM_BUTTONS"]["DRIVERS_DOOR_OPEN"])
     elif self.CP.carFingerprint == CAR.HRV:
+      ret.standstill = not cp.vl["STANDSTILL"]["WHEELS_MOVING"]
       ret.doorOpen = bool(cp.vl["SCM_BUTTONS"]["DRIVERS_DOOR_OPEN"])
     else:
       ret.standstill = not cp.vl["STANDSTILL"]["WHEELS_MOVING"]