Merge "libopus: Ignore integer overflows in NSQ_del_dec.c and NSQ.c" am: d5875d2a08 am: 1b1417f64e am: 0562188b31

Original change: https://android-review.googlesource.com/c/platform/external/libopus/+/1611915

Change-Id: I6f8ee21b32e3adf64dcb235e9256deca831a8ddd