Starting from version 2021.10 only distro booting is supported, as
reported by commit ff8f277e9121 ("ti: am335x_evm: Switch to DISTRO_BOOT only").
The patch allows to update U-Boot to versions later than 2021.10.
Tested on beaglebone black.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
