Adapt layer to work with the meta-seconorth-nogplv3 layer

The FEATURE_PACKGES directive doesn't work here, because the packagegroups aren't run like a normal recipe. Moved the GPLv3 packages back to PACKAGES for normal inclusion.

(cherry picked from commit b996d338)

assigned to @jonas.hoeppner

added 13 commits

• 48d765c1...2d759730 - 2 commits from branch kirkstone
• ec1b7db1 - gplv3: Fixed missing packages due to wrong directive
• 12658c42 - gplv3: Further fixed image without GPLv3 support
• 2ffedd36 - distro: Rework of nogplv3 distro
• ec6f5231 - packagegroup-seconorth-debug: Move the gplv3 handling to meta-nogplv3
• de7e9d37 - packagegroup-seconorth-tests: Rename packages to ${PN} and ${PN}-small
• 37109144 - packagegroup-seconorth-minimal: Move nogplv3 handling to meta-seconorth-nogplv3
• 73c0c52a - packagegroup-seconorth-networking: Move nogplv3 handling to meta-seconorth-nogplv3
• d5b07d07 - packagegroup-seconorth-tests: Move nogplv3 handling to meta-seconorth-nogplv3
• ce63a82c - packagegroup-seconorth-qt5: Move nogplv3 handling to meta-seconorth-nogplv3
• fbacc022 - systemd: Move nogplv3 handling to meta-seconorth-nogplv3
• 88c5bca1 - Remove the 'gplv3' DISTRO_FEATURE, this in now handled by an override

Compare with previous version

merged

Integration merge request: seco-ne/yocto/manifest!736 (merged)

mentioned in merge request seco-ne/yocto/manifest!736 (merged)