cherry-pick from 2024-04: ci: try to build bl2 with ubi support for R4#22

stephan48 wants to merge 1 commit intofrank-w:2024-10-bpifrank-w/u-boot:2024-10-bpifrom

stephan48:build-ubi-for-bpi-r4-on-2024-10-bpistephan48/frank-w-u-boot:build-ubi-for-bpi-r4-on-2024-10-bpiCopy head branch name to clipboard