Updates from upstream (#27)

* chore(mcu): properly label CAN H/L (Frix-x#418)

TX and RX are not helpful, looking at the back of the m8p v2 shows that RX is high, and TX is low.

* added back the proper idle timeout behavior

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Co-authored-by: Devon Hazelett <dhazelett@users.noreply.github.com>
Co-authored-by: Félix Boisselier <felix@fboisselier.fr>