[PATCH v5 2/9] arm64: dts: Reflect change of FSL QSPI driver and remove unused properties

The FSL QSPI driver will be moved to the SPI framework and it then acts as a SPI controller. Therefore the subnodes need to set spi-[rx/tx]-bus-width = <4>, so quad mode is used just as before. Also the properties 'num-cs' and 'bus-num' were never read by the driver and can be removed. The

[PATCH v5 2/9] arm64: dts: Reflect change of FSL QSPI driver and remove unused properties

The FSL QSPI driver will be moved to the SPI framework and it then acts as a SPI controller. Therefore the subnodes need to set spi-[rx/tx]-bus-width = <4>, so quad mode is used just as before. Also the properties 'num-cs' and 'bus-num' were never read by the driver and can be removed. The