nds32: board: Support SPI driver.

Add spi dts node and enable spi dm flash config.

Signed-off-by: rick <rick@andestech.com>
diff --git a/configs/adp-ae3xx_defconfig b/configs/adp-ae3xx_defconfig
index 9e1e5ec..c105395 100644
--- a/configs/adp-ae3xx_defconfig
+++ b/configs/adp-ae3xx_defconfig
@@ -5,6 +5,8 @@
 CONFIG_BOOTDELAY=3
 CONFIG_SYS_PROMPT="NDS32 # "
 CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SF_TEST=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
@@ -13,17 +15,23 @@
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
 CONFIG_OF_CONTROL=y
-CONFIG_ENV_IS_IN_FLASH=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_DM=y
+CONFIG_CLK=y
 CONFIG_MMC=y
 CONFIG_MTD=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_CFI_FLASH=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_DM_ETH=y
 CONFIG_FTMAC100=y
 CONFIG_BAUDRATE=38400
 CONFIG_DM_SERIAL=y
 CONFIG_SYS_NS16550=y
+CONFIG_DM_SPI=y
+CONFIG_NDS_AE3XX_SPI=y
 CONFIG_TIMER=y
 CONFIG_AE3XX_TIMER=y