Merge "Decoder: Update check for increment u2_cur_slice_num" into sc-dev am: 78eae5772d am: e1db05d6f3 am: 38fac4119a

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libavc/+/14457574

Change-Id: I7452d70735fb35a9e971503410c20fb6091e8fbb