update-packages: removal of unneeded directories in reverse order
update-packages: removal of unneeded directories in reverse order

as we're using rmdir to remove directories (to remove only empty
directories), removal needs to be in reverse sorted order
e.g. /a /a/b  /a/b/c needs  to be removed first as /a/b/c then
     /a/b and only then /a

devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink