atusb.brd: new layout (in progress)
atusb.brd: new layout (in progress)

- atusb.brd: update for component changes
- atusb.brd: change board orientation to mimick USB stick
- atusb.brd: add vias, mainly around the antenna (before: 24 vias, now: 35)

cfriedt/ben-wpan,cfriedt/ben-wpan,cfriedt/ben-wpan,cfriedt/ben-wpan,cfriedt/ben-wpan,cfriedt/ben-wpan