I added pull request: https://github.com/armbian/build/pull/1943
But actually the code is mainlined.
Without the entireboard-h6-orangepi-lite2-fix-missing-all.patch, the gpu would be initialized.
See the line: https://github.com/armbian/build/blob/master/patch/kernel/sunxi-dev/board-h6-orangepi-lite2-fix-missing-all.patch#L9
and the commit: https://github.com/torvalds/linux/commit/8abc4c4a154f658ac1f928eb5ccd9cb4706b2f3d#diff-c25ce9e020a90aa3096d059cdefc6781
But I guess board-h6-orangepi-lite2-fix-missing-all.patch is needed for something else...