can: Kconfig: correct history of the CAN protocol

Current history of CAN protocol is wrong, fix it in the Kconfig file.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>