Nissan: steering faults

Continuation of https://github.com/commaai/opendbc/issues/3410. Anyone with a Nissan is free to try and fix any of these

- [x] EPS fault on light driver override torque - https://github.com/commaai/opendbc/pull/3407
- [ ] EPS fault on high angle request (or could be lat accel, or have timing component, or our max torque is not high enough)
- [ ] ~EPS fault on high angle rate (maybe Toyota fault prevention works)~ Actually it may be high driver torque instead, faults even while disengaged when user turns wheel fast

Start by reading the continuation issue #3410 and the linked PR #3407 to understand the Nissan steering-fault context and what has already been addressed. Investigate the remaining unchecked EPS-fault scenarios, and consider the work done only when the relevant faults are reproduced, understood, and resolved without introducing new steering issues.

Written by the indexing model from the issue text.