* Update config for Buildroot 2023.02
* Use Buildroot's version of the rtl8821cu package
Buildroot provides a newer driver for the RTL8821CU based chipsets
provided by https://github.com/morrownr/8821cu-20210118.
* Pass argument when verifying partition table
This also avoids running into a segmentation fault in the current
version of sgdisk.
* Remove obsolte GRUB2/NetworkManager patches
* Bump buildroot
* buildroot 90aa1a6daa...4832525e6c (4596):
> package/runc: add support for CGroup device permission updates
> package/network-manager: fix build with -Dmodem_manager=false
> package/dbus-broker: bump to release 33
> package/iptables: Allow to use iptables with nf_tables backend
> package/brcmfmac_sdio-firmware-rpi: bump to latest version
> package/linux-firmware: Deploy fewer Intel WiFi 22000 series variants
> package/linux-firmware: Add more Intel WiFi 22000 series variants
> package/linux-firmware: Add Broadcom BNX2 firmware
> package/rpi-firmware: bump version to 1.20230106
> Update for 2023.02-rc2
* Use Ubuntu 22.04 for CI checks
* Bump xe-guest-utilities to 7.33.0
* Remove unnecessary shellcheck ignore for xe-guest-utilities
* Address new buildroot check-packages issues
Add buildroot utils/check-package check to the pr-checks.yml workflow.
It checks for common errors/mistakes when creating own buildroot
packages. Also fixed all warnings this utility output for our existing packages.
* Enable some useful kernel configurations
* Add xe-guest-utilities for better Xen support
Add guest utilities and make sure the Xen guest daemon gets started
when running under Xen virtualization.
* Initial version of release workflow using GitHub Actions
Add release workflow using GitHub Actions to replace the current Azure
DevOps pipeline. Currently the same functionality is implemented. This
uses multiple builds in parallel to make better use of CPU resources.
Remove Azure DevOps pipeline.
* Add GitHub Actions workflow for pull-request checks
Lint Dockerfile and shell scripts when PRs are opened.
* Use multiple runners in parallel
Buildroot has stretches where CPU resources are not fully utilized.
Spawn multiple builds accross builders to increase load. Also sort them
by architecture to maximize ccache hit rate.
* Checkout before validate version
