Fix Liteon with MTU 1500 and update the FHI docs - Closes #884 - needed to update the max fragments needed for transmission of one symbol; technically, 5 are enough but due to wrong equation in the xran F release we had to increase to 6 - Clarify packet length for VFs - Update Foxconn doc and config file with MTU set for jumbo frames - Update Benetel docs with new version v1.2.2