Add tests for all CAN bitrates recommended by CAN in Automation (CiA). The
newly added bitrate tests are guarded by new, local Kconfig option
(CONFIG_TEST_ALL_BITRATES) to avoid breaking existing board tests.
Some boards may need adjustments to their CAN core clock in order to pass
the newly added tests. Once a board is confirmed to meet these additional
checks, this Kconfig can be enabled for that board to avoid future
regressions.
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
