Update the U-Boot to version v2021.01. Run-tested: FriendlyARM NanoPi R2S Radxa Rock Pi 4 Pine64 RockPro64 Signed-off-by: Marty Jones <mj8263788@gmail.com> [format commit message] Signed-off-by: David Bauer <mail@david-bauer.net>
Add support for the FriendlyARM NanoPi R2S. Signed-off-by: David Bauer <mail@david-bauer.net>