WIP: Acura integra safety

[vanillagorillaa]

Opening as a starting point to start the discussion. The Integra does not have a ENGINE_DATA message, so the panda RX checks fail. For the moment I have removed this check for the port, but will want to come up with a clean way to do this.

Instead of using ENGINE_DATA (which uses the XMISSION_SPEED) signal for vEGO in openpilot, I've used the CAR_SPEED signal for vEGO instead.

@sshane Thoughts?

[sshane]

Is this manual or automatic? Have a route? Will need a flag, but can we switch over the safety to use CAR_SPEED? If that always exists, are there any issues with it on existing cars? Edit: hmm, the minimum speed is ~double XMISSION_SPEED on our Accord

[vanillagorillaa]

Neither the CVT or MT integra's have the ENGINE_DATA message (looked for it on different ID's but didn't find it at all). 0x309 will be used for CAR_SPEED

[jyoung8607]

If this gets picked up again, there's existing support in Panda to use one of three alternate messages to satisfy RxChecks. Usually we don't name any alternates, that's what the { 0 }, { 0 } at the end is.