Unlock full emmc memory capacity

[BrainDeLook]

When installing the image, openwrt only sees 1gb of emmc memory out of 32gb available.

How to unlock the full amount?

[anaelorlinski]

https://github.com/anaelorlinski/OpenWrt-NanoPi-R2S-R4S-Builds/blob/main/docs/resize-f2fs.md