[CFT] SIOCGIFNAME for Linuxulator

[Tai-hwa Liang]

Greetings,

  Following patch against HEAD adds support for SIOCGIFNAME in Linuxulator.
Please test if it works for you(build{world,kernel} tested on i386 & amd64).

  http://people.freebsd.org/~avatar/linux_SIOCGIFNAME.patch

-- 
Thanks,
Tai-hwa Liang