[beagleboard] Where are usb0 network settings applied from?

Laughs.. Some days we just can win.. I'm guessing the default
angstrom images didn't work either.. (they use 192.168.7.x too..)

Anywho, it's set in two places...

/etc/network/interfaces (which you'll probably already changed..)

and in a custom location (easy for me to push out updates), and
written to enable a bunch of things to help all the new windows
( https://github.com/RobertCNelson/boot-scripts/blob/master/BEAGLEBONE_A.sh#L56