Integrate meta-seconorth-distro/fix_xwayland
Commit: seco-ne/yocto/layers/meta-seconorth-distro@4467a659
weston:xwayland: Added display for x11
The DISPLAY environment variable must be set for X applications to start correctly.
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Commit: seco-ne/yocto/layers/meta-seconorth-distro@c9ad7470
weston: Fixed auto-start of systemd service
The Weston systemd service was depending on the graphical.target. This target depends on a display manager which we don't have. Replaced it with the multi-user.target.