Respect rtr_allowed in Pdo.Map.Save()
Respect rtr_allowed in Pdo.Map.Save()

When disabling or enabling a PDO by changing the "COB-ID used" sub-index
we need to respect the value in the 30th bit. If a device does not
support remote frames, an attempt to write the field will trigger an SBO
abort reply.

christiansandberg/canopen,christiansandberg/canopen