you would have to recompile the u-boot to and flash said u-boot to get what you’re looking for. the thing is that baylibre, i am guessing, was testing with the vim3 basic and so set hard sizes that accommodated that device. This is the file with the config for the partitions and ive already edited it to give more space on the userdata and super partitions, and you will only need to put it into the /include/configs folder of the source code that you can find by following these instructions, just scroll down, its below the files.
just a note, these havent been updated in a bit but id say it should be safe to use “u-boot/v2022.01/integ”, but if you run into issues with that version, you can use the version in the instruction instead. hope this helps