CameraHal: Don't signal off AF status events to 'doAutoFocus()'

- In dark lighting conditions and when AF assist is active
  sometimes the OMX camera component changes the AF status
  to off and generates and OMX event. Currently this is being
  interpreted as cancel AF.

Bug: 6197932

Change-Id: Ibddd0033eecd186c1bfc90530af651f1c0223a25
Signed-off-by: Emilian Peev <epeev@mm-sol.com>
1 file changed