* Attach Meson64 to mainline with a bunch of patches. Tested, but need further work.
* Enable DVFS on N2 which sometimes works, sometime doesn't, cleanup
* Enable beta targets for Meson64 kernel family
* Bump with version
* Wireguard: bump tag to most recent since it breaks building on 5.4.y
* Move rockchip current to 5.4.y
* Move sunxi current to 5.4.y
* Move meson64 to 5.4.y
* Move odroidxu4 to 5.4.y and enable "current" targets
* Enable missing target