Trusty: Build boringssl with C++ support am: 14a53cdcd5 am: 677e1d6aa8

Original change: https://android-review.googlesource.com/c/platform/external/boringssl/+/1587598

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I959287abb2c33eba40d494c20b041049c61ff7b4