Honda DBC cleanup

[Adeeb Shihadeh]

Ideally, we can use a single DBC for all Hondas, like we do with many of the more recent car ports. This can be done incrementally by doing the following:

• merging DBCs
• using common, universal signals when possible
• abstracting out repeated definitions into common DBCs

[Shane Smiskol]

• See if LAT_ACCEL under KINEMATICS on 145 is also available on 148 for cars using 145. The LAT_ACCEL signal is defined in the same location in the message
• Fix duplicate gear signals defined
• A lot of these messages are common in bosch vehicles, possible unify:
  • DOORS_STATUS
  • STANDSTILL
  • GEARBOX
  • GAS_PEDAL_2

[Shane Smiskol]

Notes about common signals:

• DOORS_STATUS:
• Identical: honda_civic_hatchback_ex_2017_can, honda_civic_sedan_16_diesel_2019_can, honda_crv_ex_2017_can, honda_insight_ex_2019_can
• Missing (using SCM_FEEDBACK): honda_crv_hybrid_2019_can, honda_accord_2018_can, acura_rdx_2020_can
• GAS_PEDAL_2: Not used in openpilot
• STEERING_CONTROL:

Common messages:

• Common for _bosch_2020 and _honda_2017: VSA_STATUS, STEER_MOTOR_TORQUE, STANDSTILL, ENGINE_DATA, POWERTRAIN_DATA, WHEEL_SPEEDS, VEHICLE_DYNAMICS

• Common for _bosch_2020 and _bosch_2018: ADJACENT_RIGHT_LANE_LINE_2, KINEMATICS, STEERING_CONTROL, BOSCH_SUPPLEMENTAL_1, BRAKE_HOLD, ENGINE_DATA, POWERTRAIN_DATA, STEER_STATUS, VSA_STATUS, EPB_STATUS, VEHICLE_DYNAMICS, LEFT_LANE_LINE_1, LEFT_LANE_LINE_2, RIGHT_LANE_LINE_1, RIGHT_LANE_LINE_2, ADJACENT_LEFT_LANE_LINE_1, ADJACENT_LEFT_LANE_LINE_2, ADJACENT_RIGHT_LANE_LINE_1, ADJACENT_RIGHT_LANE_LINE_2, SCM_BUTTONS, CAR_SPEED, ACC_HUD, CRUISE, SCM_FEEDBACK, CAMERA_MESSAGES, STALK_STATUS, STALK_STATUS_2, XXX_16

• Common between all base DBCs (but not all use/would cause superset): ACC_CONTROL, ACC_CONTROL_ON,

• Common between all base DBCs: STEER_MOTOR_TORQUE, WHEEL_SPEEDS, ROUGH_WHEEL_SPEED, SEATBELT_STATUS, LKAS_HUD