Fix in returning end of bitstream error for MBAFF

In case of MBAFF streams, slices should terminate on
even MB boundary. If bytes are exhausted with odd number
of MBs decoded for MBAff, then treat that as error.

Bug: 33933140

Change-Id: Ifc26b66ff8ebdb3aec5c0d6c512e4cac3f54c5b7
