db-88f6281-bp-nand: Enable DM_SPI/SPI_FLASH

Enable DM_SPI, DM_SPI_FLASH for db-88f6281-bp-nand board.

Cc: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
1 file changed