imx23-olinuxino board has spi pins exposed on external connector.
This patch add spi support.
Signed-off-by: NFadil Berisha <f.koliqi@gmail.com>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>