Decoder: Fixes in accessing mbaff flag in error cases

ps_dec->ps_cur_slice->u1_mbaff_frame_flag is updated in ih264d_start_of_pic().
So updated value should be used after calling ih264d_start_of_pic()

Bug: 33974623
Test: ran POC from bug
Change-Id: I0f1ff5e01ed39767f493f197791e51b0da74952f
(cherry picked from commit 3f6937a0031e4acadc9228559ae2ae47b992b16a)
(cherry picked from commit 0f2f2b5fde873b8badee949561c17692588647e8)