uboot-tools is provided by u-boot-tools but sometimes apk still gets
confused. This change prevents errors such as
pine64-pinephone:~$ sudo apk upgrade --verbose
WARNING: Failed to perform initial self-upgrade, continuing with full upgrade.
ERROR: unable to select packages:
uboot-tools (virtual):
provided by: u-boot-tools
required by: device-pine64-pinephone-0.25-r1[uboot-tools]
[ci:ignore-count]
[ci:skip-build]: already built in CI successfully
* Add u-boot build with a lot of patches that makes the display work in
u-boot for boot selection
* Upgrade the rockchip kernel to 5.11 mainline with config for the
rk3399 devices built-in
* Make the rockpro64 and pinebook pro use the newer kernel
[ci:skip-build]