Merge tag 'u-boot-at91-fixes-2023.10-b' of https://source.denx.de/u-boot/custodians/u-boot-at91

Second set of u-boot-atmel fixes for the 2023.10 cycle:

Two small fixes , one for an array not initialized and the second one
fixes an error case when a DT property is missing for the atmel NAND
driver.