Update FreeBSD network drivers with the 9.2 release
ipro1000: fixed the build after the 9.2 update
libroot: Properly fix linking with libgcc without cmdline overflow

Instead of listing all the objects we want from the libgcc archive
we just make a copy of it and remove those we don't want, and link
to it.

This should allow returning MAXLINE in jam to a sane value.