Merge tag 'u-boot-at91-2025.07-a' of https://source.denx.de/u-boot/custodians/u-boot...

First set of u-boot-at91 features for the 2025.07 cycle:

This feature set includes improvements on the atmel-quadspi driver, a
fix for the nand driver, and improvements on the pinctrl driver to be
able to use the Linux DT (also sync on the DT side as well).