Update [os-base](https://github.com/burmilla/os-base) and [os-initrd-base](https://github.com/burmilla/os-initrd-base) to latest [Buildroot LTS](https://buildroot.org/download.html) version.
Update os-base and os-initrd-base to latest Buildroot LTS version.