webos_system_bus_paths: Move some system bus related variables from luneos-filesystem-paths.inc

* this way we can export them even for components not using luneos DISTRO or webos_system_bus.bbclass

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
leveldb: drop to upgrade to 1.18 from meta-oe

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
lxc: Drop imported recipes from meta-virtualization

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
qt5-opengles2-test, qt5-plugin-generic-vboxtouch: move to meta-qt5

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
bblayers.conf: Split meta-webos-ports layer to meta-luneos and meta-luneui

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>