atusb.brd: added via from nRST/C2CK, to allow for addition of pull-up
atusb.brd: added via from nRST/C2CK, to allow for addition of pull-up

- atusb.brd: nRST may need an external pull-up to VDD. Added via to bring
  nRST and VDD within reach (pull-up suggested by Joerg Reisenweber)
- atusb.brd: increased version to 20101229

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