Update FreeBSD code to support 10.2 (or 11-HEAD)

[fbettag]

Hi there!

Looking at the FreeBSD 6.1 patch, this seems that not too much changed. Would you be interested in updating that portion? Sadly i come from Java-land, so my C skill is not high enough for kernel modules, otherwise i'd take a stab at it.

Thanks!

[bcopeland]

It's not clear to me which patch you're referring to, but it would be best if someone who works in FreeBSD did this work since they are best placed to test it.

[fbettag]

I was referring to https://github.com/cozybit/authsae/blob/master/freebsd/freebsd_6.4_RC1_diffs
Testing is no issue for me, i have enough devices, but the "FreeBSD WiFi guy" is currently overwhelmed with work :(

[fbettag]

So i took it upon myself and removed a lot of FreeBSD/clang related warnings/errors, now this looks nice except for one issue which is more of your ballpark :)

#33