drivers: flash: mcux flexspi nor: copy data to RAM buffer on write

This feature prevents issues when trying to write data to the flash
device that is located on or addressed at the same flash device.

An example is the mcuboot logic that writes a magic number to
the secondary partition header.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
2 files changed