abootimg, mkbootimg, mkboot, statefs, timed: Use the new pkg_postinst_ontarget syntax of OE sumo instead of the previously used failing pkg_postinst

Make sure user services are only run as ceres. Since openssh uses pam login, ssh root@watchIp would open a new systemd user session and start asteroid-launcher or other services as root

statefs-qt: don't install headers in include/qt5/ which is no longer imported by recipes depending on statefs-qt

qtaround, statefs-providers, statefs: updates the cmake flags to follow the new Qt install directories from the previous commit.

Fixes incorrect dependencies to qtquick1 which built huge packages like qtwayland for no good reason...