Add AR9 DTS definition to be recognized by the DWC2 driver.
The same driver parameters can be mostly used except that some boards
seem to erroneously report OTG HNP/SRP capability of the USB HCD.
Forcing the HNP/SRP off allows these boards to work with the DWC2 as well.
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
SVN-Revision: 46915