subject: add can-calc-bit-timing
message: add can-calc-bit-timing
  
  Add the tool as sent by Wolfgang via email
  (<4BE152D2.6060306@grandegger.com>).
  
  Signed-off-by: Wolfgang Grandegger <5aa1976eca1fee4e35c7b71ec8e8a0ebad9da3d1@grandegger.com>
  Signed-off-by: Marc Kleine-Budde <4a0ea1158d3cc63151119c05b1bff00c0bdbf421@pengutronix.de>
  