package_manager.py: define info_dir and status_file when OPKGLIBDIR isn't the default
* without this the do_rootfs task doesn't respect OPKGLIBDIR and
info, status are created in different directory than opkg on
target expects
* people who modify OPKGLIBDIR need to make sure that opkg.conf included
in opkg package also sets info_dir and status_file options
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
