can: ems_pci: Initialize BAR registers

Fix the base register defines and their usage for all three card versions

Signed-off-by: Gerhard Uttenthaler <uttenthaler@ems-wuensche.com>
Link: https://lore.kernel.org/all/20230120112616.6071-4-uttenthaler@ems-wuensche.com


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