Rivian: steering fault for high angle rate

[sshane]

Confirmed this is what this is:

Tried sending a single frame of the steer bit at 0, but the EPAS didn't re-enable after and caused the ACM to disengage ACC (but no EPAS faults). We should stop the ACM from sending LKAS warnings and actuation over us like we do for other ports: https://github.com/commaai/opendbc/pull/2015 And try sending 2 frames so it sees the rising edge

[sshane]

This fault happens disengaged and when not steering at all, so our normal workaround of turning off the actuation bit does not work. Perhaps we can just ignore it if we're above the max angle rate and it's only a few frames.