can: tcan4x5x: Specify separate read/write ranges

Specify exactly which registers are read/writeable in the chip. This
is supposed to help detect any violations in the future.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-12-msp@baylibre.com


Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>