Merge tag 'u-boot-at91-2023.10-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next

First set of u-boot-at91 features for the 2023.10 cycle:

This feature set includes a new board sama5d29 Curiosity, and various
fixes and alignments for sam9x60 and sam9x60 curiosity board.