Update the default configuration for the following AT91-based boards:
   Atmel AT91RM9200 DK
   Atmel AT91RM9200 EK
   Atmel AT91SAM9260 EK
   Atmel AT91SAM9261 EK
   Atmel AT91SAM9263 EK
   Atmel AT91SAM9RL EK
Signed-off-by: NAndrew Victor <linux@maxim.org.za>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>