atmel/nand: add DT support

Use a local copy of board informatin and fill with DT data.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/at91sam9x5.c

@@ -313,11 +313,6 @@ void __init at91sam9x5_initialize(void)
 	at91_gpio_init(NULL, 0);
 }
 
-/* --------------------------------------------------------------------
- *  AT91SAM9x5 devices (temporary before modification of code)
- * -------------------------------------------------------------------- */
-void __init at91_add_device_nand(struct atmel_nand_data *data) {}
-
 /* --------------------------------------------------------------------
  *  Interrupt initialization
  * -------------------------------------------------------------------- */