python-efl: upgrade from separate recipes to shared python-efl-1.8.1

* python-ecore, python-edbus, python-edje, python-elementary,
  python-emotion, python-evas are now built from single source tree
* announcements:
  1.8.0:
  http://sourceforge.net/mailarchive/message.php?msg_id=31728838
  1.8.1:
  http://sourceforge.net/mailarchive/message.php?msg_id=31862842

* be aware that upgrade-path wont probably work correctly
  and that you have to manually cleanup your sysroots before
  migrating to new shared efl recipe, for details see
  https://bugzilla.yoctoproject.org/show_bug.cgi?id=4102



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