lxqt-base: add a packageconfig for a working lxqt-image
lxqt-base: add a packageconfig for a working lxqt-image

currently this only makes openbox working for lxqt

Signed-off-by: Andreas Müller <d72a15aaaca3a7afa855175c72dc8d2e05931e32@googlemail.com>

schnitzeltony/meta-qt5-extra,schnitzeltony/meta-qt5-extra,schnitzeltony/meta-qt5-extra