can-calc-bit-timing: add support flexcan with 30MHz refclock
can-calc-bit-timing: add support flexcan with 30MHz refclock

Signed-off-by: Marc Kleine-Budde <4a0ea1158d3cc63151119c05b1bff00c0bdbf421@pengutronix.de>

carloop/can-utils-osx,carloop/can-utils-osx