[update] update to upstream commit fb72a05
Squashed 'qtsystems/' changes from 701442a..fb72a05

fb72a05 remove proprietary libsysinfo stuff
e70d494 refactor the dir structure

git-subtree-dir: qtsystems
git-subtree-split: fb72a057387d3b6b6a292d33cb7c97a596bbfb2e
Merge commit '22f2ba5eb470ec0d5b4029840ab18610f4341e99'