uboot-mvebu: update to version 2023.07.02

uboot-mvebu: update to version 2023.07.02

Since 2021.07 multiple bugs were introduced that made it impossible to
create a bootable target for mvebu. Those issues should be now fixed since
2023.07-rc1.

References: #11661
Signed-off-by: Oli Ze <olze@trustserv.de>
Reviewed-by: Robert Marko <robimarko@gmail.com>
Tested-by: Andre Heider <a.heider@gmail.com> # espressobin-v3-v5-1gb-2cs
Signed-off-by: Petr Štetiar <ynezz@true.cz> [facelift]
(cherry picked from commit ba7d6dddc7d20222c1703b173ef50befefb3fb52)