Decoder: Initialize ps_cur_slice->u1_mbaff_frame_flag correctly for error cases Bug: 34097213 Bug: 33641588 Change-Id: I40a6c5af7f1e46e1623ae1b399db3073123390fe (cherry picked from commit 1d5640f2f9013e8de68cedc3e57a6b02b495b3c2)