Decoder: Initialize slice parameters before concealing error MBs am: 33db7a0f4e am: 129a6006b4 am: fc855de43f am: 634b546f34
am: f34b7a27a2

* commit 'f34b7a27a290aa7a5736f08b0c5fa1a4e05c523a':
  Decoder: Initialize slice parameters before concealing error MBs

Change-Id: Ic64b0d11d866510a7b312c41565fdb5fcadd25eb