Align node properties to kernel dts node. Keep U-Boot specific nand-enable-arbiter, and num-cs for compatibility with the current driver. Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Shmuel Hazan <shmuel.h@siklu.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il>