tree 17c4d0bc375f715d118c6784d39b44e51aa48134
parent 6d3cb0fdcd7d29ef54651576c3d0c5fb8c789a16
author rick <rick@andestech.com> 1503904389 +0800
committer Andes <uboot@andestech.com> 1505961022 +0800

nds32: board: Support SPI driver.

Add spi dts node and enable spi dm flash config.

Signed-off-by: rick <rick@andestech.com>