Merge tag 'u-boot-nand-20240808' of https://source.denx.de/u-boot/custodians/u-boot-nand-flash

This series adds support for the UBI block device, which allows to read/write
data block by block. The series was tested by Alexey Romanov on SPI NAND.

The patches pass the pipeline CI:
https://source.denx.de/u-boot/custodians/u-boot-nand-flash/-/pipelines/21933