at91: move dataflash spi driver to drivers/spi

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/at91sam9263ek.h b/include/configs/at91sam9263ek.h
index 83baf67..cd0c15c 100644
--- a/include/configs/at91sam9263ek.h
+++ b/include/configs/at91sam9263ek.h
@@ -108,6 +108,7 @@
 #define PHYS_SDRAM_SIZE			0x04000000	/* 64 megs */
 
 /* DataFlash */
+#define CONFIG_ATMEL_DATAFLASH_SPI
 #define CONFIG_HAS_DATAFLASH		1
 #define CONFIG_SYS_SPI_WRITE_TOUT		(5*CONFIG_SYS_HZ)
 #define CONFIG_SYS_MAX_DATAFLASH_BANKS		1