Adjust to change in Alpine that moved rockchip to single image:
https://gitlab.alpinelinux.org/alpine/aports/-/merge_requests/51827
Fix for:
ERROR: The following firmware binary does not exist in the rootfs_pine64-rockpro64 chroot: /usr/share/u-boot/rockpro64-rk3399/idbloader.img
[ci:skip-build]: already built successfully in CI
Remove maintainers who could not be reached to test v22.12. Add exkc as
maintainer for firmware-pine64-rockpro64 as discussed in review of this
patch.
[ci:skip-build]: already built successfully in CI
This device runs on linux-postmarketos-rockchip which at the moment of
writing is 5.13.0 with (only) 6 patches applied, so close-to mainline.
I personally use 2 of these devices with postmarketOS installed daily as
my homeserver setup and it has worked really well. It's also a good
target to run Plasma Bigscreen on as a TV setupbox