can: tcan4x5x: Rename ID registers to match datasheet

The datasheet calls these registers ID1 and ID2. Rename these to avoid
confusion.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://lore.kernel.org/all/20230728141923.162477-5-msp@baylibre.com


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