external/boringssl: Sync to 3989c99706bf30054798ff82f1cb010e50e385f5. am: 92a0f790a5 am: 3bd9db26a9

Original change: https://android-review.googlesource.com/c/platform/external/boringssl/+/1455436

Change-Id: Id3677024195df7de3bcdd4748dc18fc26b638ac2