luaposix: bump to version 33.4.0

luaposix: bump to version 33.4.0

 - 0001-sched-workaround-glibc-_POSIX_PRIORITY_SCHEDULING-bu.patch is
   removed because it was merged upstream. Since this patch is
   removed, autoreconfiguring the package is no longer needed.

 - the ncurses dependency is dropped because the ncurses-related
   functionality from luaposix was removed, and moved to a separate
   project.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
[Thomas: write a proper commit log.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>