board: at91sam9260ek: Use SPI-flash-based AT45xxx DataFlash

To support driver model and device tree, use the SPI-flash-based
AT45xxx DataFlash driver, DataFlash is a kind of SPI flash.
Instead of ATMEL_DATAFLASH_SPI DataFlash older driver that will
be removed in the future.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/at91sam9xeek_nandflash_defconfig b/configs/at91sam9xeek_nandflash_defconfig
index b48755c..4ef55ea 100644
--- a/configs/at91sam9xeek_nandflash_defconfig
+++ b/configs/at91sam9xeek_nandflash_defconfig
@@ -15,6 +15,7 @@
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_NAND=y
+CONFIG_CMD_SF=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
@@ -29,6 +30,10 @@
 CONFIG_DM_GPIO=y
 CONFIG_AT91_GPIO=y
 # CONFIG_MMC is not set
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ATMEL=y
+CONFIG_SPI_FLASH_DATAFLASH=y
 CONFIG_DM_ETH=y
 CONFIG_MACB=y
 CONFIG_PINCTRL=y
@@ -40,5 +45,7 @@
 CONFIG_DEBUG_UART_BOARD_INIT=y
 CONFIG_DEBUG_UART_ANNOUNCE=y
 CONFIG_ATMEL_USART=y
+CONFIG_DM_SPI=y
+CONFIG_ATMEL_SPI=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y