The MX66UW2G345G is Macronix Flash with SINGLE and OCTAL I/O. Hence,
add SPI_NOR_OCTAL_READ flag for this flash.
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
[jagan: change order of id flags] Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: zhengxun <zhengxunli.mxic@gmail.com>