edje: Fixing little misbehavior of edje_edit_state_rel_to_set

Summary:
After making part relative to the whole interface (by giving NULL parameter)
it was returning EINA_FALSE (not successfull).

Reviewers: seoz, cedric, raster

Reviewed By: raster

CC: reutskiy.v.v, cedric

Differential Revision: https://phab.enlightenment.org/D379

src/lib/edje/edje_edit.c

@@ -3252,7 +3252,7 @@ FUNC_STATE_OFFSET_INT(rel2, y);
      else \
        { \
          pd->Sub.id_##Value = -1; \
-         return EINA_FALSE; \
+         return EINA_TRUE; \
        } \
   }
 //note after this call edje_edit_part_selected_state_set() to update !! need to fix this