[Backport v4.0.99-ncs1-branch] [nrf fromtree][nrf noup] Changes needed for MSPI shim driver for sQSPI#2736

carlescufi merged 3 commits intov4.0.99-ncs1-branchnrfconnect/sdk-zephyr:v4.0.99-ncs1-branchfrom

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