efl: upgrade from separate recipes to shared efl-1.8.5

* eina, evas, eio, efreet, edbus2, ecore, ethumb, emotion, embryo, edje
  are now built from single source tree
* announcements:
  efl & friends
  http://sourceforge.net/mailarchive/message.php?msg_id=31733071
  EFL 1.8.4 release
  http://sourceforge.net/mailarchive/message.php?msg_id=31826305
  EFL 1.8.5 release
  http://sourceforge.net/mailarchive/message.php?msg_id=31895179

* 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>