make tftp work when TFTP_CRC_SUPPORT is enabled and no format string is given.
added hardware description files for antares boards.
Merge branch 'e6-upstream2' of github.com:sauttefk/ethersex into e6-beteigeuze

Conflicts:
	pinning/hardware/antares_IO.m4
	pinning/hardware/antares_O.m4
Merge branch 'e6-beteigeuze' of github.com:sauttefk/ethersex into e6-beteigeuze