It extends the protocol to receive the adapter CAN state changes
(warning, busoff, etc.) and forward them to the netdev upper levels.

Link: https://lore.kernel.org/all/20220628163137.413025-13-dario.binacchi@amarulasolutions.comSigned-off-by: NDario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>