external/boringssl: Sync to 040bc4944be97f5d4b44da176f6e801fc804a176.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/ab20cec1c1de815de8da6cc74c2503460efd6e1c..040bc4944be97f5d4b44da176f6e801fc804a176

Test: Libcore CTS presubmits
Change-Id: I0667fbfb5c64ab68a3482c226c9ad12788f6806c
62 files changed