pibridge-serdev: return EIO instead of EBADMSG in case of incomplete data
For consistency return EIO instead of EBADMSG in case of incomplete data. By doing this EBADMSG is only returned if data has been received correctly but an error is indicated in the received datagram header or CRC.
Signed-off-by: Lino Sanfilippo l.sanfilippo@kunbus.com