Merge tag 'u-boot-at91-2022.04-b' of https://source.denx.de/u-boot/custodians/u-boot...

Second set of u-boot-at91 features for the 2022.04 cycle:

This small feature set includes few changes for sama7g5 and sama7g5ek:
turn blue led on at boot, changes required for the Rev4 of the board,
better sync with the Linux DT with regards to the new DT nodes.