external/boringssl: Sync to 2d98d49cf712ca7dc6f4b23b9c5f5542385d8dbe.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/5ede28c8a422801ace3ba5e466ba963005351145..2d98d49cf712ca7dc6f4b23b9c5f5542385d8dbe

Test: BoringSSL CTS Presubmits
Change-Id: I21750d81b070d7e4741e205f5c2ccd8d541b36d1
79 files changed