[beagleboard] USB OTG host in Angstrom

Even with cables I very often have to use this incantation to get it to work (using .26 kernel from recent OE build console-image).

echo host> /sys/devices/platform/musb_hdrc/mode

This forces the USB OTG port to act like a host, then once you have the cables sorted out, you can use external USB devices no problem.

Todd Pack