Rather than requiring a yocto re-build to support the CAN IoT card, the
relevant kernel module code has been taken out of tree.  For 9x15 based
modules (wp75, wp85) use the modules in the can_9x15 directory.  For
9x07 based modules (wp76, wp77), use the modules in the can_9x07
directory.  The can_common/can_iot module instantiates an mcp251x device
with the appropriate platform data for using the CAN IoT card in a
mangOH Red.