A misspelled 'arbitrary' propagated to quite a few locations in the DT
binding documentation for pin-controllers. Fixing by:
  git grep abitrary | cut -f1 -d: | xargs sed -i 's/abitrary/arbitrary/'
Reported-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: NRob Herring <robh@kernel.org>