Also:

- let the unit test set the global LOK flag, as sw code now depends on
  that
- in framework, don't return early after emitting the LOK status
  indicator callback, otherwise CppunitTest_sw_tiledrendering shows how
  sw LOK callbacks are missing

Change-Id: I0c4ac12f2ef5118d29afd131676bcb27d5db7746
(cherry picked from commit 1a83f30e)