12724 update smatch to 0.6.1-rc1-il-5

*** 18,25 ****
   * check-name: smatch impossible #2
   * check-command: smatch -I.. sm_impossible2.c
   *
   * check-output-start
  sm_impossible2.c:12 main() register_impossible_return: no states
! sm_impossible2.c:14 main() [register_impossible_return] 'impossible' = 'impossible'
   * check-output-end
   */
--- 18,25 ----
   * check-name: smatch impossible #2
   * check-command: smatch -I.. sm_impossible2.c
   *
   * check-output-start
  sm_impossible2.c:12 main() register_impossible_return: no states
! sm_impossible2.c:14 main() [register_impossible_return] impossible = 'impossible'
   * check-output-end
   */