external/boringssl: Sync to fa3aadcd40ec4fd27a6e9492ef099b3dcc6eb2af.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/7f7e5e231efec6e86d6c7d3fd1b759be1cece156..fa3aadcd40ec4fd27a6e9492ef099b3dcc6eb2af

Test: BoringSSL CTS Presubmits.
Change-Id: I5381241ee7b94e1076d04090a0bc468b7816a1a1
35 files changed