Integrate meta-guf-distro/fix_gplv3_2

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Commit: https://git.seco.com/seco-ne/yocto/layers/meta-guf-distro/-/commit/1d4f3f8ff452c607cb5072dd30a87fe8cc58b470

networkmanager: Disabled Vala

Since version 1.36.2, the NetworkManager is build with Vala support.
We don't include Vala in our Image and disable it therefore.

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Commit: https://git.seco.com/seco-ne/yocto/layers/meta-guf-distro/-/commit/4bda626be60fdc12b0f02e9751cb4d35e20ee36d

gplv3: Further fixed image without GPLv3 support

The standard image was missing the GPLv3 packages.
Added them back in and created a new distro without GPLv3.