Here are the modification to at91sam9261 files dedicated to the support of
at91sam9g10. This direction has been adopted to minimize code duplication.

All at91sam9261 drivers are enabled in _devices and board files. Modificaton
to peripherals that support at91sam9g10 will be added in future patches.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

AT91sam9261 series is an ARM 926ej-s SOC family clocked at 190/100MHz.

The first board that embeds at91sam9261 chip is the AT91SAM9261-EK.
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3820

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>