[ARM] 4011/1: AT91SAM9260: Fix compilation with NAND driver

Add missing include for NAND device support on AT91SAM9260.
Signed-off-by: NWojtek Kaniewski <wojtekka@toxygen.net>
Signed-off-by: NAndrew Victor <andrew@sanpeople.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-at91rm9200/at91sam9260_devices.c

@@ -18,6 +18,7 @@
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam9260.h>
 #include <asm/arch/at91sam926x_mc.h>
+#include <asm/arch/at91sam9260_matrix.h>
 
 #include "generic.h"