SPI configuration for nrf52832 by overlay file

Hi, 

I try to communicate with a MRAM (MR25H128A) to nrf52832 board via SPI communication. I write an overlay file setting up all the necessary pins. Although I am getting an error in the overlay file and device tree. could you please help me to write the overlay file so that I can write and read back from that MRAM? 

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