Merge tag 'u-boot-at91-2022.07-b' of https://source.denx.de/u-boot/custodians/u-boot-at91

Second set of u-boot-at91 features for the 2022.07 cycle:

This feature set includes the new driver for the AT91 reset controller,
a new board called sam9x60 curiosity, and several other fixes and
clean-ups (sama7g5ek qspi clock, impedance; remove unused code,
introduce Kconfig symbols for SPL timers)