rm_work: remove package and package-splits dirs

* as described in
  http://git.openembedded.org/openembedded-core/commit/?id=6107ee294afde395e39d084c33e8e94013c625a9

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
libfm: add dependency on libexif

* it's autodetected from sysroot

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