can: mcp251xfd: update macros describing ring, FIFO and RAM layout
So far the configuration of the hardware FIFOs is hard coded and depend only on the selected CAN mode (CAN-2.0 or CAN-FD). This patch updates the macros describing the ring, FIFO and RAM layout to prepare for the next patches that add support for runtime configurable ring parameters via ethtool. Link: https://lore.kernel.org/20220313083640.501791-7-mkl@pengutronix.deSigned-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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