While "ok" is recognized in DT parsing, only "okay" is actually
mentioned as valid value. Replace it accordingly.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Until now only HW modded SPI flash version was supported.
BCM6328 with 64M RAM and 128M NAND.
More info: https://openwrt.org/toh/sercomm/ad1018
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>