Fix out of bounds access after !1143
When maxNumSubLayersMinus1 = 6, the inference of SubLayerLevelIdc access to m_subLayerLevelIdc[6], but this array is only of size 6
When maxNumSubLayersMinus1 = 6, the inference of SubLayerLevelIdc access to m_subLayerLevelIdc[6], but this array is only of size 6